41 comments

  • tedsanders 6 hours ago
    > We’re all used to two types of magnet. The common one, the fridge magnet, is ferromagnetic — its atomic magnets all point the same way (up or down), adding their magnetic effects. The less well known one, the antiferromagnet (AF), has neighbouring atomic magnets that point opposite ways and exactly cancel out magnetically.

    This is a very bizarre introduction. People encounter diamagnets (e.g., copper) and paramagnets (e.g., aluminum) way more than they encounter antiferromagnets. I don't know why you'd ever cast magnetism as a false binary between ferromagnets and antiferromagnets, without acknowledging any other types of magnetic order.

    (I did a PhD in magnetic materials)

    Edit: I'll add that whether an antiferromagnet is useful, say, for exchange biasing a ferromagnetic thin film, depends on many factors. Just looking at antiferromagnetism alone you've got collinear vs non-collinear, G-type vs A-type vs C-type, commensurate vs incommensurate, and isotropic vs anisotropic; and all of that interacts with the interface structure, yada yada yada. It would be helpful if the authors elaborated on the expected properties of these materials. I personally don't know what people want room-temperature magnetic semiconductors for, but I'd be curious to learn what set of properties they think would be useful.

    • contemporary343 6 hours ago
      This is what happens when Claude writes it for you (and you don't review it)
      • aero142 6 hours ago
        So, Claude claims a new discovery and then someone else's Claude writes the blog posts. It would be helpful if I could get Claude to read this for me and post dejected HN comments in response.
        • post-it 6 hours ago
          You can! And I believe many do. But please don't.
      • joshuat 5 hours ago
        Never thought about how much it must suck to be an engineer named Claude right now
        • bryanlarsen 5 hours ago
          Not as much as being a woman named Karen.
          • latentsea 2 hours ago
            There has to be a software engineer named Claude whose mother or wife is named Karen. There just has to be.
          • reilly3000 5 hours ago
            Or Siri. I knew one who was deeply upset about the whole thing.
            • ggm 5 hours ago
              Siri, Claude and Karen walk into a bar. Nobody serves them because the robots.txt forbade it.
              • embedding-shape 4 hours ago
                Not gonna lie, sounds like one of those people/things/entities came up with that joke.
                • ggm 4 hours ago
                  If you think GPT/LLM detection works on one sentence -- then you have found the point. let me re-factor that and here's the thing..
                • iAMkenough 3 hours ago
                  If corporations can be considered a person/citizen with Constitutional rights, and they birth an AI model, are AI Agents considered people too?
            • woliveirajr 2 hours ago
              Once upon a time, in Brazil, there was a campaign about STDs. They decided to call the male genitalia as "Braulio". That name become ruined forever.
              • kstrauser 1 hour ago
                You don't see a lot of American kids named Dick anymore.
            • sgarland 5 hours ago
              I am deeply upset every time the HomePod in another room decides to attempt to answer my query instead of the phone that’s in my hands, which then has to ask who is speaking, and has a 50:50 chance of ultimately failing to do the task.

              With how magical handoff / continuity / whatever it’s called is, it is baffling to me why Apple allows the HomePod to so aggressively take over requests when it sucks so, so much at it.

              • dzhiurgis 1 hour ago
                Noticed this too. Siri on iPhone is almost useful now, but HomePods steals the show and says "I found some results on the web, do you wanna check them on your iPhone?"

                It's somewhat obvious they want to sell the updated model, perhaps the new home device thats coming out next week.

              • bmurphy1976 2 hours ago
                Google isn't much better. I have them all over the house. Ask a question to the living room speaker, skips that, skips the one in the kitchen, answers from the one in the bathroom upstairs or one in the basement. Then you get a notification later asking "was this the right device?" which is doubly infuriating since responding to that never actually improves anything.
        • PunchyHamster 4 hours ago
          Hey at least people accept your architectural decisions without questioning!
      • EA-3167 6 hours ago
        It's not perfect by any means, but Pangram indicates 100% human written. Remember people can be quite foolish without any machine assistance.
        • thayne 59 minutes ago
          I suppose it is also possible it was written by a human who wasn't very familiar with magnetism based on what claude told them.
          • EA-3167 32 minutes ago
            Or they could be misinformed in any number of other ways. I’m not a fan of how people use ML, but I still remember that people were misinforming others long before it existed.
            • thayne 29 minutes ago
              Sure. Although, given the topic of the piece it seems likely some of the misinformation came from AI.
        • goalieca 4 hours ago
          I don’t believe any of these AI detectors.
          • astrange 32 minutes ago
            Pangram is reliable.

            It would be easy for them to use AI for ideas and then write the article themselves though.

          • EA-3167 3 hours ago
            Ok? I regularly test the one I use to get a sense of accuracy, and especially with a few pages worth of text to work with I do take it seriously. You’re more than welcome not to.
            • thatsabadlook 2 hours ago
              It's trivial to have an ai break them especially once you know what those models measure
    • comradesmith 6 hours ago
      I also like how they explained ferromagnetism as being arranged atomic magnets. Magnets all the way down.
      • tedsanders 6 hours ago
        Yeah, and it's not even an accurate explanation either.

        > The common one, the fridge magnet, is ferromagnetic — its atomic magnets all point the same way (up or down), adding their magnetic effects.

        Ferromagnets typically have domains with magnetic moments that point in different directions. Ferromagnets rarely have every 'atomic magnet' pointing the same way.

        https://en.wikipedia.org/wiki/Magnetic_domain

        Refrigerator magnets in particular are usually magnetized as Halbach arrays, where the whole point is that the 'atomic magnets' are not pointing in the same direction. This is more energetically stable, which allows you to use cheaper materials.

        https://en.wikipedia.org/wiki/Refrigerator_magnet

        Lastly, I believe most refrigerator magnets are actually ferrimagnetic, not ferromagnetic. (The distinction doesn't matter much for users of magnets, but is important for the materials scientists studying and designing them.)

        https://en.wikipedia.org/wiki/Ferrimagnetism

        • niwtsol 6 minutes ago
          Thank you for adding this, literally a prime example of the expertise I expect/love to find on HN.

          Are there any other really unique characteristics of magnets that you find really interesting that most people would not know?

    • thayne 54 minutes ago
      Whether or not this was directly written by AI, I get the impression, after reading a few paragraphs of this, that the author doesn't know enough to be able to validate the results are actually correct.
    • strbean 4 hours ago
      As a lay-person, I definitely expected paramagnets to be the second type.
      • MarkusQ 3 hours ago
        I sometimes think the average layperson (in the US at least) would assume that the main alternative to a magnet was called a woknet.
    • 0xbadcafebee 3 hours ago
      > what people want room-temperature magnetic semiconductors for

      I don't know what I'm talking about, but it vaguely sounds like something that could make a small computer do more stuff, where heat is a big limiting factor in computer components today, and magnetism being a central component in many parts like storage

  • scrlk 6 hours ago
    After the LK-99 debacle, I'm taking this with a truck load of salt.
    • adriand 6 hours ago
      > After the LK-99 debacle

      "Debacle"? That was the most fun I've had on the Internet in years. When's the last time so many people engaged in so many arguments about materials science and electromagnetism? Sometime in the 1800s?

      • ntonozzi 6 hours ago
        Maybe he meant 'debacle' in an endearing sense, not a derogatory one. I personally agree with you and loved this debacle.
        • brookst 1 hour ago
          Some of my fondest memories are of debacles, fiascos, and brouhahas.
    • zaep 6 hours ago
      I think, of course, skepticism around this "LLM discovers X" thing is warranted, and there have been plenty of more recent examples around questionable LLM "discoveries". Just stating this because the LK99 thing I believe was notable as a (supposed) room-temp _super_conductor while this is about a _semi_conductor.
      • post-it 5 hours ago
        Oh wait, you're right. I misread the title. Don't we already have room temperature semiconductors?
        • gus_massa 5 hours ago
          Yep. This has interesting magnetic properties.

          In magnetic materials, you must calculate separately the current with spin up and spin down and there ara meny interesting applications. My favorite is[1] https://en.wikipedia.org/wiki/Giant_magnetoresistance

          [1] Was. Because it has used for hard disks (see the applications section). Now SSD ruins the interesting anecdote.

        • DanHulton 5 hours ago
          Oh wow, I had the same misread and the same gut reaction.
          • deinonychus 2 hours ago
            i saw this thread of comments and had to re-read the title about 12 times before i figured out the difference
    • gekoxyz 6 hours ago
      Yeah I remember going to my physics professor super excited about LK-99 to ask him if he heard about it, and him just telling me "yes but stuff like that happens twice per year, they will find something is off", and in fact it's what happened...
    • unsupp0rted 2 hours ago
      It wasn't a debacle. It was somebody announcing world-changing results and somebody else rushing to prove or disprove that, since if it's correct, it's world-changing. It wasn't correct.

      The system worked as designed and as intended.

    • mawadev 6 hours ago
      I start my day with plenty of optimism, then I go back and forth in the CLI and find out most of whats posted online is fake, and then towards the end of the day 2h past my bed time I end up ed zitron maxxing, it is the way it is ig
    • jghn 5 hours ago
      Even without the LK-99 debacle, I am *way* less excited about this than I was the original LK-99 announcement. The chance that this is real is close to 0%
      • marshray 4 hours ago
        At least with LK-99 we had people claiming to have personally measured these properties in actually existing samples.
      • Zambyte 4 hours ago
        This is a semiconductor, not a superconductor. Does that change your calculations?
        • jghn 3 hours ago
          A bit, I misread and then saw this LK-99 comment. I still think the likelihood is about 0% but maybe a few decimal places more likely.
    • tantalor 4 hours ago
      Angela did a great summary of this a little while ago, https://www.youtube.com/watch?v=fj3WwMxUDZ8
    • fnord77 5 hours ago
      this isn't about supercondutors, though
    • AndrewKemendo 5 hours ago
      I’m not sure what you mean by debacle

      That was one of the best examples of science working nearly perfectly. One of the rare times I felt ok being human

      • to11mtm 5 hours ago
        I think it did play out fairly as far as actual 'scientific method' goes.

        I think as far as the 'debacle', there was definitely a lot of hype (at least as far as HN goes) around it, the level of buzz felt similar to what one would see today around a new AI model release.

        • AndrewKemendo 4 hours ago
          Oh I was very excited about it and was following along extremely closely

          but the fact that it proceeded in the way that it did was absolutely fucking phenomenal

          I’m actually really glad that it was brought up as an example because I had forgotten about it and it’s one of the few kind of hopeful things that we’ve done recently.

    • sigbottle 4 hours ago
      Back in 2023? Yeah, fun times.
    • mlmonkey 6 hours ago
      You probably meant "I'm taking this with a tiny pinch of salt". The amount of salt is directly proportional to how much of the claim you are willing to accept.

      Edit: I stand corrected. According to Gemini:

      Me: Does using more salt mean accepting more of that claim?

      Gemini: No, it actually means the exact opposite. If you say you need to take a claim with a huge pile of salt (or a shovel of salt), it means you believe the claim is highly unbelievable and you need an immense amount of skepticism to accept it. How the Metaphor Scales

      • A single grain of salt: "I am slightly skeptical, but it could be true."

      • A pinch of salt: "I have a healthy amount of doubt about this."

      • A grain of sand / A truckload of salt: "This sounds completely made up, and I barely believe a single word of it."

      The salt represents your skepticism, not your belief. Therefore, the more unbelievable the claim, the more "salt" you need to swallow it.

      • frereubu 6 hours ago
        I don't think this is right. https://en.wikipedia.org/wiki/A_grain_of_salt The "grain" isn't a single grain, it's an old English measure which is around 65mg, i.e. roughly how much there is in a pinch. I've also only ever heard people use larger amounts to mean more scepticism.
        • Telemakhos 3 hours ago
          It's not an old English measure, because Latin has "granum salis" (a grain of salt) in medical authors and Pliny. There's no indication that it was a measure; it was a cube or crystal of salt.
        • PostOnce 6 hours ago
          A person leans on the titanic intellect of a trillion dollar company's most fearsome LLM, only to be corrected by a random commenter with a link to Wikipedia.

          We live in interesting times.

          • Zambyte 4 hours ago
            Well Gemini and Wikipedia produced the same conclusion.

            Linguistic questions were one of the first knowledge categories I trusted LLMs to be able to answer well - quite literally being models of language. It would be pretty shocking for a ~frontier model to get something like that wrong in the last like 3 years at least.

            • PostOnce 3 hours ago
              I was referring to the LLM giving the wrong definition of grain (i.e. not an individual grain), which while not as popular as it once was, is still widely used for ammunition.
              • kibibu 19 minutes ago
                I don't know how Gemini is wrong so much more often than anything else. Its actually quite impressive.
          • AndrewKemendo 4 hours ago
            And the LLM likely referenced Wikipedia
            • PostOnce 3 hours ago
              And yet still misunderstood how much a grain is.
      • Retro_Dev 6 hours ago
        Hmm? I always thought it was how much you had to flavor the statement to swallow it.
        • snypher 2 hours ago
          My grandmother said it had to do with throwing a pinch of salt over your shoulder to ward off evil spirits and lies.
      • esperent 6 hours ago
        No, the implication is that something "tastes off" so you need to add a pinch (+) of salt to make it palatable. The more off it tastes, the more salt you need.

        (+) Or a "grain" if you're from the US since American English sayings seem to all date from the middle ages, while the rest of the English speaking world tends to update ours over time. No shade meant, I've just always found that interesting.

      • ReptileMan 6 hours ago
        Inversely proportional
      • plastic-enjoyer 6 hours ago
        I guess mlmonkey is a fitting name.
      • tempestn 6 hours ago
        Citation needed.
      • RemingtonDavies 4 hours ago
        [dead]
  • nico 6 hours ago
    In a way, you can think of pretty much anything we express with language, especially things that are already modeled in scientific language, or logical language, or in equations or code; to be representable in a parametric/searchable space

    Thus, you can build ai/ml models+agents to explore those spaces, at a speed and scope much larger than what any human can do

    I can imagine findings like these are going to keep increasing in frequency to a point in which the bar for novelty goes a lot higher

    • nico 6 hours ago
      Anecdata: over the weekend, on a whim, I decided to download a real fly’s brain’s weights [0], run it on a simulated task like finding food, then train a logistic classifier using the fly’s decisions as the expert, then use the trained classifier as a decision model to simulate the fly on a 3d environment, running in real time on a website

      It took me (using Claude code and some codex), about 3 hours to put it together

      And even though it was a cool demo, it seemed so easy, that it also felt like it wasn’t worth sharing

      0: ChessFly (not mine), uses the FlyWire connectome (the fly’s brain’s weights) to play chess https://huggingface.co/spaces/mlabonne/chessfly

      • RivieraKid 3 hours ago
        The weights in the fly's brain are unknown, the connectome doesn't contain such data. Not sure what exactly these demos do, but it's certainly not a simulation of the fly's brain.
        • nico 1 hour ago
          You are technically correct. The weights of the connectome are not the same as the parameters of an ai model, but FlyWire absolutely does provide a weighted directed connectivity graph, where the edge weight is the number of synapses between neurons. The FlyWire literature itself calls those values “edge weights” or “connection weights”, and treats them as a proxy for synaptic strength

          And agreed that this isn’t a faithful simulation of a fly brain. I’m using the connectome as the network structure/parameters for a computational model, then using its outputs as the teacher for the classifier. Not sure how the ChessFly uses it

          Edit: in any case, these are just fun demos, they aren’t research papers trying to claim accurate physiological fly brain software simulations

          • cousinbryce 1 hour ago
            This is extremely impressive, but at the same time it has some pickle Rick plays chess vibes
      • binsquare 6 hours ago
        I think ai certainly raises the bar for those with taste
        • gradus_ad 2 hours ago
          It's like a mass proliferation of fast casual but damnit I want some steak.
      • tripleee 6 hours ago
        Many people wouldn't find that easy, even with AI
        • chneu 5 hours ago
          This can be said about anything.
          • caaqil 5 hours ago
            > This can be said about anything.

            More generally, anything can be said about anything.

            • parineum 3 hours ago
              In a way, you can think of pretty much anything we express with language, especially things that are already modeled in scientific language, or logical language, or in equations or code; to be representable in a parametric/searchable space
      • polishdude20 6 hours ago
        Oh please do share!
    • hgoel 4 hours ago
      Does that really work for superconductors when the mechanisms for superconductivity to emerge are still a major field of study and not something one can just simulate and engineer?
      • nico 4 hours ago
        We can always iterate on the model itself. So you can speculate on the physics (explore the space of physical models), and for each of those physical models, you can explore the space of materials

        I have no idea about those actual models, but there are layers of models that you can create, and for each, you can explore with data and compute

        It's not a free lunch though. Depending on the task, you might need to collect a lot of the data, or review it manually, or pay a lot for compute, or wait a lot for compute. And still have to iterate a lot on the results, and do your own explorations as a human operator/driver of the whole thing. And then create the materials, test them, get funding to do the whole thing... so theoretically, I think we are in a place where we can successfully apply models to a lot of things, but realistically, we won't be applying all the resources to everything

      • wholinator2 4 hours ago
        Also, this is about a magnetic semiconductor, not a superconductor. I also got the wrong impression initially before re-reading it. I imagine 99% of non-experts are going to make the same mistake.
    • esafak 6 hours ago
      It is not at all obvious that merely because we have words for concepts, that a model should be able to do all these miraculous mathematical and scientific things.
      • nico 6 hours ago
        You are correct. My comment is not so much about that this is something elementary. But rather an observation that, given the current state of technology, it seems like we are being able to model increasingly more things, in increasingly more efficient and automated ways, to the point that there seems to be a pattern to it
      • jeremyjh 6 hours ago
        Right, it also has to model a substantial fraction of reality (or at least a true simulation of it) to accomplish these things.
        • SR2Z 6 hours ago
          It models our language, which is a flawed and imperfect way of describing the world. So far, it seems like a lot of these discoveries are "filling in the gaps" between the things we've written down and the things they imply (if you have the memory to think them through).

          The story about OpenAI's Navier-Stokes solution is a good example of what I mean. I don't think it would have been possible without computer assistance because that proof is long and complicated. I'm also not sure that it would have been possible without a human proposing a new approach to the problem, because by all accounts that's exactly what led to the absurd amount of spending that OpenAI did to solve the issue.

          I feel like that at least implies that there's some room left for humans in the new world.

    • nater5000 6 hours ago
      Yeah...?

      That's the pitch of LLMs lol

  • dev_l1x_be 6 hours ago
    I am not sure how this process looks like. When they "discover" these, what are they actually doing?

        The agents ran quantum-mechanical simulations of each crystal with the standard method for this, density functional theory, at two levels of approximation: a faster one (PBE+U) and a slower, usually more accurate one (HSE06). The band gaps and spin windows below come from the more accurate one.
    
    So the agent runs a classic simulation or I am missing something.
    • atq2119 6 hours ago
      A lot of the public successes with agents is really LLM-driven local search against an objective function that is evaluated in more traditional ways. This one seems to fit the pattern.
      • CSSer 41 minutes ago
        I think a better way to put this is that success with LLMs is guaranteed by defining what success looks like without LLMs first.
    • rsfern 6 hours ago
      Modeling superconductivity with DFT is tricky, there are plenty of DFT reports from reputable groups explaining why LK-99 should be superconducting. It’s a limitation of the theory, DFT can’t model correlated electron states well, and it’s not great at finite temperature, and both of those are important for superconductivity.

      Edit: I somehow missed that this is about magnetic semiconductors (not superconductivity) so DFT is a bit on better footing here. I still think it’s a bit challenging predicting magnetic ordering at elevated temperature, but maybe not as difficult as superconductivity

    • contemporary343 6 hours ago
      They ran Quantum Espresso which is ok, but by no means the 'state of the art' for DFT. And in case, any DFT computation has to be taken with a few pounds of grains of salt before getting too excited about it.

      No offense to the person writing this (assuming they did at all), but I'm not sure they really understand what they're doing..

    • __MatrixMan__ 6 hours ago
      I'm under the impression that this kind of modeling is one of the applications that quantum computers are likely to be good at.

      I'd imagine there's a lot of documented research which has attempted to find such things using classical computers.

      Seems like there would be a lot of well structured context for somebody to use while directing agents to repeat that research, now with updated models once quantum computing is ready for that kind of task.

    • dekhn 6 hours ago
      not a classic simluation- a quantum simulation. This means they put a lot more work into representing the wave function of the simulation and modelling quantum effects.
      • contemporary343 6 hours ago
        They used quantum espresso.. undergrads usually run this in certain classes: https://www.quantum-espresso.org They didn't do any work there.
        • dekhn 5 hours ago
          You misunderstood what I said. I mean that quantum calcs are more computationally expensive than classical simulations ("more work"). I am not saying the authors of this blog did anything special.
    • rfgplk 6 hours ago
      Frankly, there is no point in trying to "understand" what an LLM does. Their thought process is effectively undecipherable by humans (it's essentially information arising from information) so even such a "simple explanation" is almost certainly wrong. The agents might appear to have "used this method", but the actual method of computation is far beyond our grasp.

      Why are people being so belligerent about this? I thought it's fairly obvious at this point that LLM reasoning is far beyond anyones understanding. Or does anyone have a refutation?

      • reasonableklout 6 hours ago
        This is a strange attitude. When an agent is optimizing a piece of code, comes up with 2 variations, and runs benchmarks on them to figure out which one is faster, then selects one of them based on tradeoffs between performance and other things it reasons about, do you ignore its explanation and all experiment runs?
      • static_motion 6 hours ago
        >Their thought process is effectively undecipherable by humans (it's essentially information arising from information

        Are you trying to say that human brains are incapable of inference?

      • fasterik 6 hours ago
        You're confusing the weights of a model and internal chain-of-thought with the output of the model. Yes, we don't know a lot about how the internal mechanisms work. But with the correct prompt, agents will produce a worklog that documents exactly what solutions were tried and how the result was obtained.
      • black_knight 6 hours ago
        What are you on about? I have had Fable come up with new shit for me several times (I do research for a living, so actual new shit nobody knew before), and each time it was perfectly understandable.

        Of course I don’t know how it got its ideas for what to try. But heck, I don’t even understand how I get my ideas half the time. But the process, like what code it wrote, simulations it ran etc can be understood by (some) humans just fine!

      • amoorthy 6 hours ago
        Yes I saw 3Blue1Brown say the same thing in his tutorial on how neural nets worked where he built a simple model to recognize a particular letter. Good reminder.
        • rfgplk 6 hours ago
          I've been dabbling with some of my own (tiny) models recently and it's actually shocking at what they can "learn" despite having _zero_ mention of it in it's training data.
  • malfist 6 hours ago
    Okay? Aren't the semiconductors we use today room temperature? I certainly don't use helium to cool my phone.

    I don't see any claims that this is better than the current silicon and gallium arsenide semiconductors that we use. And the use of "room temperature" seems a deliberate attempt to misconstrue this with superconductors

    • drdeca 5 hours ago
      1) the “room temperature” bit did cause me to initially misread it in the way you describe, so you may be right about that.

      2) it is specifically saying it is a magnetic semiconductor. The Wikipedia article on the topic says “ To date, GaMnAs remains the only semiconductor material with robust coexistence of ferromagnetism persisting up to rather high Curie temperatures around 100–200 K.” , so this would be something new. (The silicon chips in your smartphone are not ferromagnetic.)

      • strbean 3 hours ago
        They are candidates for antiferromagnetic semiconductors. Apparently this is invaluable for spintronics and ultra-fast-switching (terahertz) transistors among other things.
    • maipen 5 hours ago
      Any sort of alternative discovery, even though it may be inferior, is a great achievement made by AI; Meaning that better discoveries are possible too.
  • jonplackett 6 hours ago
    A lot of these ‘an agent invented’ or ‘an agent solved’ are actually the agent wading through a lot of info and finding something a human did that no one noticed or saw the relevance of at the time.

    If ai becomes so prolific that we humans all stop doing those things then will they still work?

    • gabbagool 6 hours ago
      Which is somewhat ironic since neural networks were "discovered" back in the 1940s... then forgotten... then wait, they were discovered again! ... then forgotten, again... and now here we are.
      • thinkcontext 5 hours ago
        We didn't have big enough compute and data to do interesting things with them until recently. That changed with ImageNet in 2012

        https://www.technologyreview.com/2020/11/03/1011616/ai-godfa...

        • dekhn 4 hours ago
          Sort of- Yann LeCun had working neural network based letter recognition, used by the Post Office.
          • thinkcontext 3 hours ago
            That's a fair point to make. It was impressive what they achieved with 90s hardware. Of course OCR to general object recognition is a big gap in how interesting it is.
    • Schiendelman 6 hours ago
      Yes, as long as we are advancing to behavior and world models, so that agents can interact with the world themselves. Which we are.
    • chris_money202 6 hours ago
      Well its not just any old human doing these things in a general sense. Its typically academics or highly paid researchers who love doing work like this. So, I don't think it will just one day stop
      • jonplackett 5 hours ago
        I think access to AI too early (before any expertise) is going to serious cripple educational development.

        Next gen of scientists might look quite different.

        • chris_money202 5 hours ago
          That is probably true, but the ones that make it through to become experts might get super-charged with AI as well
          • jonplackett 5 hours ago
            But my ponderance is - is that enough. Is AI supercharging or just super finding?
  • WillowWithAWand 53 minutes ago
    I really wish headlines would stop using words like "discover" and "found" when they really should use words like "says" and "reported" because an LLM was involved. IMHO anything produced by an LLM should be treated like something said by a cable news host.
  • randbyte 6 hours ago
    Who is vals.ai and why they keep submitting eye-catching claims. A few weeks ago they said fable 5.1 solved some obscure cipher and now opus 5.5 found room temperature semiconductor candidates. Meanwhile they seem to be in the business of making benchmarks.

    Are they a promoter / influencer for Anthropic?

    • contemporary343 6 hours ago
      It's an evals platform. The problem is to promote evals in scientific domains you need to actually know something about them. Otherwise you end up with slop like this.
  • esperent 6 hours ago
    The title has been editorialized.

    Actual title:

    Two Room-Temperature Antiferromagnetic Semiconductor Candidates

    There's nothing unusual about finding room temperature semiconductors. I assume whoever posted it misread this as room temperature superconductors, but it has nothing to do with that.

    What's interesting here is the antiferromagnetic part of the title, which was removed. I think this makes it relevant for e.g. RAM, but not superconducting. Someone can correct me if I'm wrong.

  • Legend2440 6 hours ago
    Interesting; but until actually made and tested, not worth getting excited over.
    • devmor 6 hours ago
      One of the materials is most likely impossible to synthesize. The other already exists, so that may actually be capable of being tested. It's only been synthesized once, 27 years ago though.
      • nrmitchi 6 hours ago
        > One of the materials is most likely impossible to synthesize

        Is this a "actual impossible because it's inherently contradictory", or "we just don't know how to do it yet but give us a year"?

        • Legend2440 6 hours ago
          We don't know a way to precisely place atoms in a checkerboard pattern like that, without getting it so hot that the arrangement is destroyed.

          It maybe could be possible but beyond the reach of current material science.

          • nrmitchi 6 hours ago
            I personally thinks that’s the more optimistic of the two options; I’ll take it as a win for today
          • RemingtonDavies 4 hours ago
            [dead]
        • devmor 6 hours ago
          "Likely Impossible" as in, we would need a revolutionary discovery in how thermodynamics apply to crystal formation.
  • monocasa 6 hours ago
    Sounds like a good reason to hire a lab to make some, and then make a big deal about it if the results pan out.

    I can think of worse uses of VC AI funding.

    • okamiueru 5 hours ago
      Gotta pump it as much as possible before the IPO.
  • lifeisloving 6 hours ago
    The people who wrote this seem to be lacking in expertise, and its just a model benchmarking company..Whos every article is just hyperbole about llms.

    Not sure why we're calling it a discovery, when they've literally been made before, by a human.

  • otterley 6 hours ago
    I wouldn't describe them both as being newly-discovered. The second one, KV[Cr(CN)₆], had already been discovered.
  • epsteingpt 3 hours ago
    To be fair, this existed in a 1999 paper. They just simulated that it worked as predicted.

    Many more things will be like this. The massive amounts of 'genius' buried under corporate management and obscurity in the past 500 years will be a treasure trove.

    • epsteingpt 3 hours ago
      JACS will be a good journal - e.g.
  • colijobles 6 hours ago
    While we should be skeptical until made in a lab or verified by others, this is a much better use of LLMs than solving math theorems/conjectures
    • nrmitchi 6 hours ago
      This is frankly one of the best uses of LLMs (along with proposing and evaluating drug therapies), and I think it's (at least partially) because these are things that will only work in the hands of people who are already experts and motivated in the field. The proposed thing is validate (or not validated), and then everyone moves on (either using the cool new thing, or knowing that it doesn't work). I'd also throw robotics in here.

      The fact that the major "uses" of LLMs have been contributing to the acceleration of the dead internet theory, and building millions of versions of the same apps that no one is going to maintain, is extremely sad.

  • contemporary343 6 hours ago
    Finding some new combination or iteration in the literature and running DFT is the kind of thing a senior undergraduate or first year grad student typically does (and typically with Claude anyway these days). (And yes, they'd probably use Quantum Espresso to start, like this writeup and its agent does). They'd probably show it at a weekly lab meeting where it would get ripped apart. And they would not be blasting a preliminary calculation around the world as if they'd made a new discovery.. but hey, we're in a brave new world; maybe they should!
  • matthova 6 hours ago
    Sounds interesting. Excited to see physical versions of this cooked up. Also, very excited for a world a few years from now where we can talk about accomplishments like this from the frame of the driver of the AI, rather than hype that AI helped.
  • pbrumm 5 hours ago
    If they are confident in their discovery they should pay some scientists to start making this and testing it out.
  • wewewedxfgdf 4 hours ago
    "candidate" is doing a lot of work here.
  • alpineidyll3 2 hours ago
    It read a paper and then a person who barely understands what a spin is working with a berkeley ai metric nonprofit did a blogpost.

    It didn't discover anything. This is how cooked people are.

  • postepowanieadm 6 hours ago
    Discovered in whose data?
    • hbn 6 hours ago
      All research is built off the existing body of all research data done by other people
    • einpoklum 6 hours ago
      I would image it's the data the researchers fed the agents and in which a discovery was likely. Especially since it's "candidates", so it's not like a proper discovery.
  • WesBrownSQL 6 hours ago
    I've got a friend who has been doing this research since the 90s. There is real money involved in this. This isn't like a math proof with a 1mm dollar payout. I seriously doubt this discovery. Until they show it working, I call bullshit. A room-temperature semiconductor is worth WAY more than an AI company.
    • Zambyte 4 hours ago
      I'm typing this from a room temperature semiconductor.
  • ariwilson 5 hours ago
    vals.ai has great marketing! Unclear if the product is great yet. Or what it is exactly.
  • Rover222 2 hours ago
    I’ve been burned before on this topic
  • einpoklum 6 hours ago
    This should probably read: "Researchers discover two room-temperature magnetic semiconductor candidates. They used Opus 5.5 agents to perform some checks."
  • m3kw9 2 hours ago
    if you read it fast, it almost made my heart beat real fast
  • sergiotapia 4 hours ago
    I just pasted the url in 6.1 sol xhigh and it said it works.
  • vatsachak 6 hours ago
    I could have gotten this in one prompt lmao
    • rfgplk 6 hours ago
      This gave me the idea to actually create a full (QED accurate) atomic simulation software. Essentially would allow you to play around with things like this. At a glance my workstation _probably_ has enough compute to handle it. At least to fully simulate at least a few dozen atoms and compounds.
      • meindnoch 6 hours ago
        You should consider patenting this very much novel idea, my friend!

        No worries, your workstation is more than enough to run accurate quantum simulations!

        :)

      • dekhn 4 hours ago
        Are you serious? QED simulations are extremely expensive even for very small N.
  • quux 3 hours ago
    Here we go again
  • poulpy123 6 hours ago
    Lmao, anything goes
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  • xgulfie 6 hours ago
    Anyone remember LK99 lol
    • frereubu 6 hours ago
      This is semiconductors, not superconductors.
    • zamadatix 6 hours ago
      That was a room temperature superconductor, a bit different of a task.
  • Ygg2 7 hours ago
    Ugh. Unless this has been actually experimentally verified to be a room-temperature and room-pressure superconductor, it's about as ground breaking as "Yet another promising nuclear fusion candidate theoretically described."
    • ChickeNES 6 hours ago
      Well, given that this is a semiconductor, and not a superconductor, I don't see how that is relevant?
      • xmodem 6 hours ago
        Reading the title I saw the words "room-temperature" and my mind auto-completed it to superconductor, and based on other comments I don't think i'm alone in that.
      • Ygg2 4 hours ago
        My bad. It's as exciting as "Yet another promising nuclear fision method theoretically described."
    • Lerc 6 hours ago
      I agree that it is about as ground breaking as "Yet another promising nuclear fusion candidate theoretically described."

      I'm not sure why you would consider new and promising avenues for research to not be ground breaking. If it's an idea worth trying, it's an idea worth trying. If it doesn't survive testing, then it was still worth trying.

      • Ygg2 4 hours ago
        Because unless it is experimentally verified it could just be a hallucination.
        • Lerc 3 hours ago
          Ideas do not transform into hallucinations when they don't pan out.

          You could characterise perceiving a fact to be true when it is not as a hallucination.

          An idea is not a fact, Frodo Baggins is not a hallucination, but an idea. Believing that Frodo Baggins exists in our world could be considered a hallucination.

          Newtons Laws of motion are not hallucinations even though the universe does not run on Newtonian physics. If I said that he told me about them this morning, that would be claiming a fact, not expressing an idea. That would likely be a hallucination.

  • rfgplk 6 hours ago
    Current frontier LLMs empower effectively anyone with limitless knowledge. Historically, if I wanted to hire an engineer to, say, create something like this I would have needed a multi-million dollar budget. Now, anyone with $200 (or less) can achieve it.
    • devmor 6 hours ago
      You are vastly overestimating what has been achieved here.

      This is something a couple of materials science grad students can do in limited time for poor compensation as well. The expensive budget is for the part that comes next.

      • rfgplk 6 hours ago
        Of course, "LLM solves quantum gravity and proves existence of God", "nah brah, that's easy brah any kid could have done this brah".

        This is what you sound like. I also like how the goalposts keep moving on a daily basis, a year ago it was that LLMs can't even write a Hello World program without making an error, but now things like this are "so easy a minimum wage intern could do it."

        • SpicyLemonZest 6 hours ago
          Isn't there quite a bit of space between "so easy a minimum wage intern could do it" and your original claim that it would have cost millions of dollars to produce these results?
        • devmor 6 hours ago
          Why hyperbolize when I am commenting on something it has actually done and the vastly exaggerated claims related to this?
        • suddenlybananas 6 hours ago
          It hasn't done that though.