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Posted by outlier99 1 day ago

Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates(www.vals.ai)
482 points | 325 commentspage 4
alpineidyll3 1 day 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.

Lockal 8 hours ago||
Quoting README.md:

> A designed web version with the same text and diagrams is in docs/index.html; turn on GitHub Pages for the /docs folder to serve it.

Yeah, the author did not even reads the slop Claude produces.

MetroWind 8 hours ago||
Suuuurrreeeee
westurner 9 hours ago||
From the article:

> Candidate 1: Designed a Luttinger Compensated Magnet, YBaMnFeO₅

> Candidate 2: Identified a Luttinger Compensated Magnet in KV[Cr(CN)₆] from 1999

> KV[Cr(CN)₆] belongs to the same family as Prussian blue, the 300-year-old pigment.

An actual validation would be complex; so let's try and see what parts of this argument are grounded and feasible?

/? Prussian blue antiferromagnetic: https://scholar.google.com/scholar?q=Prussian+blue+antiferro... :

- a number of articles confirming antiferromagnetic effects

/? Luttinger-compensated Prussian blue:

- "Luttinger-compensated bipolarized magnetic semiconductor" (2025) https://journals.aps.org/prb/abstract/10.1103/9syc-71w8 .. "[2502.18136] Luttinger compensated bipolarized magnetic semiconductor" https://arxiv.org/abs/2502.18136 :

> The Luttinger compensated magnetism not only has the zero total magnetic moment as the antiferromagnetism, but also has the -wave spin splitting as the ferromagnetism, thus our work not only provides theoretical guidance for searching Luttinger compensated magnetic materials with distinctive properties, but also provides a material basis for the application in spintronic devices.

/? Luttinger-compensated : https://www.google.com/search?q=Luttinger-compensated

We could model this as a logical proof that's checkable also in lieu of doing actual work to confirm or reject the (AI) hypothesis, but first let's reason about the feasibility:

Are the described effects real?

Are there reported, reputable similar findings in similar materials?

So, at least the blue one could really work. Like it's 1999.

---

Without even validating the argument, what else do we think we know about this problem?

Did the authors know that there is a laser way to laser program the normally random domains of a magnet or antiferromagnet?

But is this going to be lower-cost and more sustainable than carbon-based room-temperature semiconductor computing, and does anyone know whether that will work yet (with ABC stacking in trilayer and pentalayer rhombohedral graphene) either?

I guess we can follow up later by searching for citations that reference this article that does not have DOI (which are free from Zenodo and FigShare).

Have we sufficiently reasoned or inferred whether the study is repeatable and reproducible?

At least we didn't inappropriately reject the hypothesis without experimentation or evidence

westurner 10 hours ago||
Astounded at how many people didn't check this and just splitted about it online to help with their opinions on the matter.

What percentage of these comments did any form of validation of the findings before diminishing the author for AI use and discarding the findings as though they had invalidated the results?

Your normal heuristics like word choice cannot help you validate or invalidate a superconductor.

ariwilson 1 day ago||
vals.ai has great marketing! Unclear if the product is great yet. Or what it is exactly.
meherabhossain 18 hours ago||
This is nothing new. This is just Claude reinventing things.
einpoklum 1 day ago||
This should probably read: "Researchers discover two room-temperature magnetic semiconductor candidates. They used Opus 5.5 agents to perform some checks."
Rover222 23 hours ago|
I’ve been burned before on this topic
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