Room temperature and pressure superconductor ?

[ursaminortaur]

Scientists have claimed to have found a superconductor which works at room temperatures and pressures. Such a discovery would be a monumental technological breakthrough though others are urging caution as the papers reporting this have not been peer reviewed and the results have not been replicated yet.


https://www.independent.co.uk/tech/superconductor-breakthrough-new-electricity-power-paper-b2382401.html

Scientists have claimed to make a breakthrough that would be “one of the holy grails of modern physics” – but experts have urged caution about the results.

In recent days, many commentators have become excited by two papers that claim to document the production of a new superconductor that works at room temperature and ambient pressure. Scientists in Korea said they had synthesised a new material called LK-99 that would represent one of the biggest physics breakthroughs of recent decades.
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Since the beginning of the last century, scientists have been working not only to understand superconductivity but also develop new materials that would allow the phenomenon to be harvested at ambient temperatures and pressures. That has not been successful, and the discovery of such a material would mark a major breakthrough in physics.

The new papers, published in recent days as a preprint on the website arXiv, claims to have overcome that problem. The researchers said they had not only found a way to synthesise such a superconducting material, but also that it could be done relatively easily – leading to huge excitement on social media.
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Scientists away from the work agreed that such a breakthrough would be hugely significant. But they urged caution, pointing to the fact that the paper has not yet gone through the peer review process, the results have not been replicated, and that there could be other explanations for the apparently astonishing behaviour described in the work.

[y0rkiebar]

Hope it's not another "cold fusion", remember that ?

[odysseus2000]

Scientists have claimed to have found a superconductor which works at room temperatures and pressures. Such a discovery would be a monumental technological breakthrough though others are urging caution as the papers reporting this have not been peer reviewed and the results have not been replicated yet.


https://www.independent.co.uk/tech/superconductor-breakthrough-new-electricity-power-paper-b2382401.html

Scientists have claimed to make a breakthrough that would be “one of the holy grails of modern physics” – but experts have urged caution about the results.

In recent days, many commentators have become excited by two papers that claim to document the production of a new superconductor that works at room temperature and ambient pressure. Scientists in Korea said they had synthesised a new material called LK-99 that would represent one of the biggest physics breakthroughs of recent decades.
.
.
.
Since the beginning of the last century, scientists have been working not only to understand superconductivity but also develop new materials that would allow the phenomenon to be harvested at ambient temperatures and pressures. That has not been successful, and the discovery of such a material would mark a major breakthrough in physics.

The new papers, published in recent days as a preprint on the website arXiv, claims to have overcome that problem. The researchers said they had not only found a way to synthesise such a superconducting material, but also that it could be done relatively easily – leading to huge excitement on social media.
.
.
.
Scientists away from the work agreed that such a breakthrough would be hugely significant. But they urged caution, pointing to the fact that the paper has not yet gone through the peer review process, the results have not been replicated, and that there could be other explanations for the apparently astonishing behaviour described in the work.

Way too early to make sensible comments. The link to the pre print seems to be just the abstract.

First questions would be:

How much current can it carry?

Is the material stable & corrosion proof?

Then would come the class of questions as to whether the effect is only in thin films or also in bulk material, & a host of other environmental effect questions.

Regards,

[JohnB]

Response
As of 26 July 2023, the measured properties have generally been considered insufficient to prove with certainty that the material is superconductive as the data do not clearly explain how its magnetisation changes or its specific heat capacity, which are considered essential properties of a superconductor.

An alternative explanation for LK-99's stated reaction to magnets, could be diamagnetism.

https://en.wikipedia.org/wiki/LK-99 which suggests the material was discovered in 1999, its not clear why its superconducting properties are only being written about in the last few years.