New type of magnetism unveiled in an iconic material:
Since the discovery of superconductivity in Sr2RuO4 in 1994, hundreds of studies have been published on this compound, which have suggested that Sr2RuO4 is a very special system with unique properties. These properties make Sr2RuO4 a material with great potential, for example, for the development of future technologies including superconducting spintronics and quantum electronics by virtue of its ability to carry lossless electrical currents and magnetic information simultaneously. An international research team led by scientists at the University of Konstanz has been now able to answer one of the most interesting open questions on Sr2RuO4: why does the superconducting state of this material exhibit some features that are typically found in materials known as ferromagnets, which are considered being antagonists to superconductors? The team has found that Sr2RuO4 hosts a new form of magnetism, which can coexist with superconductivity and exists independently of superconductivity as well. The results have been published in the current issue of Nature Communications.
[...] The authors also developed a theoretical model suggesting the origin of this hidden surface magnetism. "Unlike for conventional magnetic materials whose magnetic properties originate from the quantum mechanical property of an electron known as spin, a cooperative swirling motion of interacting electrons, generating circulating currents at the nanometer scale, underlies the magnetism discovered in Sr2RuO4" states Dr Mario Cuoco from the CNR-spin who developed the theoretical model along with Dr Maria Teresa Mercaldo and other colleagues at the University of Salerno.
[...] The new type of magnetism discovered in Sr2RuO4 is essential to also better understanding the other physical properties of Sr2RuO4 including its unconventional superconductivity. The fundamental discovery may also lead to the search for this new form of magnetism in other materials similar to Sr2RuO4 as well as trigger new studies to better understand how such magnetism can be manipulated and controlled for novel quantum electronics applications.
Journal Reference:
Fittipaldi, R., Hartmann, R., Mercaldo, M. T., et al. Unveiling unconventional magnetism at the surface of Sr2RuO4 [open], Nature Communications (DOI: 10.1038/s41467-021-26020-5)
(Score: 0) by Anonymous Coward on Thursday October 07 2021, @05:02PM (8 children)
Always be skeptical when "scientists" say they've discovered a new basic force of nature. I was very disappointed when ESP turned out to be a hoax.
(Score: 2) by Tork on Thursday October 07 2021, @05:12PM (6 children)
🏳️🌈 Proud Ally 🏳️🌈
(Score: 0) by Anonymous Coward on Thursday October 07 2021, @05:19PM (4 children)
It was quite seriously studied. The time around WWII was great for funding experiments of ethically and scientifically dubious nature.
(Score: 2) by Tork on Thursday October 07 2021, @05:34PM (2 children)
🏳️🌈 Proud Ally 🏳️🌈
(Score: 2) by FatPhil on Thursday October 07 2021, @11:40PM (1 child)
Watch /The Men Who Stare At Goats/. The movie should be easily findable - it's a hoot. There's also a documentary of the same name that it's based on, and basically the unbelievable hollywood fiction is indistinguishable from the actual quotes coming out of the people involved's mouths. The hamster video scene, for example. You'll swear it's a pisstake when you watch the movie, but oh, no, it ain't.
Great minds discuss ideas; average minds discuss events; small minds discuss people; the smallest discuss themselves
(Score: 2) by FatPhil on Thursday October 07 2021, @11:43PM
Great minds discuss ideas; average minds discuss events; small minds discuss people; the smallest discuss themselves
(Score: 2) by istartedi on Thursday October 07 2021, @06:14PM
Remote viewing [wikipedia.org] was a thing in the 70s, and even longer than I thought--I read the article. They apparently didn't pull the plug on it until the 90s!
Appended to the end of comments you post. Max: 120 chars.
(Score: 2) by HiThere on Thursday October 07 2021, @08:05PM
It was seriously studied, but the results were unimpressive. Not actually conclusive either way, which isn't surprising given that loose definitions used, and the lack of statistical rigor in the studies.
That said, it wasn't seriously studied by very many groups. Most assumed that there wasn't anything worth studying. (I disagree, but just WHAT was there that was worth studying isn't clear. It might just be "Why do people keep believing this kind of thing?".)
But it's worth noting that the proof or disproof of ESP, PK, etc. doesn't say anything about the truth or lack of same of most metaphysical philosophies, which generally, while they don't deny such effects, don't consider them at all what they're talking about.
Javascript is what you use to allow unknown third parties to run software you have no idea about on your computer.
(Score: 2) by Immerman on Friday October 08 2021, @02:24AM
>Always be skeptical when "scientists" say they've discovered a new basic force of nature.
Fortunately nobody here is claiming any such thing. They just found the some old boring forces being generated in a way they had never noticed before.
(Score: 2) by ChrisMaple on Friday October 08 2021, @03:23AM
For what it's worth, Sr2RuO4 is not a very useful superconductor. The critical temperature is about 1.5 K. It's nice that it has interesting properties to study, but it's too cold.
(Score: 2) by Rupert Pupnick on Friday October 08 2021, @09:21PM
What's iconic about it?