New discovery: Strange metal makes scientists 'wink' for research

A team of US and Chinese researchers have found the exotic metal in a material where charge is carried not by electrons-electron particles, but by a wave-like entity called a pair. Cooper.

In nature, there are two basic types of particles: bosons and fermions. It can be understood that Cooper pairs here are classified as bosons, and electrons are classified as fermions.

"Foreign metals" are a class of materials related to high-temperature superconductors and share fundamental quantum properties with black holes. These materials do not seem to follow the traditional electrical rules.

Picture 1 of New discovery: Strange metal makes scientists 'wink' for research

These materials do not seem to follow the traditional electrical rules.

It is also the reason that has attracted the attention of scientists in recent years because they can provide fundamental insights into the quantum world, and potentially help understand strange phenomena such as high-temperature superconductivity.

The recent discovery involving the foreign metal was published in the journal Nature on Wednesday (January 12) with the title "Signs of a foreign metal in a bosonic system".

Unprecedented movement of exotic metal

Jim Valles, a professor of physics at Brown in the US and author of the new study - explains that the strange motion of metals was first detected 30 years ago in a material called a cup. Scientists also cannot be sure about the behavior of these "foreign metals" because there is no evidence to support the theory of rules of action.

These foreign materials do not seem to have the same characteristics as other metals when heated to high temperatures. Usually, the strength of metals will gradually increase and reach a constant threshold. However, this "exotic metal" doesn't follow that rule and scientists are trying to figure out why.

To better understand "foreign metals" scientists have used a number of methods to observe, but the results do not say much.

Earlier, in 2019, Valles and his colleagues showed that Cooper-pair bosons can induce metallic behavior, meaning they can conduct electricity with some amount of resistance. That in itself is a startling discovery because elements of quantum theory suggest that this phenomenon cannot happen. For this latest study, the team wanted to see if the bosonic Cooper composites were foreign metals.

The discovery will give theorists something new to consider as they try to understand the strange behavior of metals, the researchers say.

"It's been a challenge for theorists to come up with an explanation for what we see in exotic metals," Valles said.

In Valles' view, strange metallic behavior could hold the key to understanding high-temperature superconductivity, which has huge potential for things like lossless power grids and quantum computers, and That is the reason why scientists are racing to learn and discover.

Update 15 February 2022
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