Graphene superconductor completely ignored strong magnetic field

Scientists have found that if the so-called moire graphene is quite possible to transform into the high-temperature superconductor does not lose its properties, even if it is placed in the zone of action super strong magnetic field.

Another manifestation of the unique properties of graphene and its modification

Graphene is a unique material made up of a single layer of carbon atoms connected between an unusual structure that strongly resembles the structure of a honeycomb.

Further experiments with open material showed that on its basis it is possible to create various materials with unique exotic properties.

For example, Jarillo-Herrero and his colleagues a couple of years ago created an unusual graphene-based insulator-superconductor, by gluing a pair of pieces of graphene at a fixed angle of 1.1 degrees and thus succeeded get a "moire" pattern.

Since then, scientists have not continued to experiment with Graphene, and so in the course of another experiment, physicists managed to establish that the so-called already three-layer "moire" graphene, one of the sheets of which is unfolded relative to the others by 1.56 degrees has even more exotic properties.

So scientists managed to find out that the resulting material has a high superconducting temperature and that is why scientists made the decision to closely study how electrons behave in a given material when exposed to strong electromagnetic fields.

As shown by previous experiments, superconductors lose their magnetic properties if they are subjected to strong electromagnetic influence. But what was the surprise of a group of engineers led by Jarillo-Herrera when the material they created behaved differently than the classical theory of superconductivity implies.

So three-layer graphene retained its superconducting parameters even when exposed to an electromagnetic field of 10 Tesla.

This turned out to be two to three times more than other superconductors were able to withstand and, as a rule, after such electromagnetic influence superconductors do not restore them even after the electromagnetic field disappears.

By the way, earlier scientists predicted the existence of compounds of spin-triplet superconductors a couple of decades ago. But the first practical demonstrations of their existence were carried out only in 2018.

So Jarillo-Herrera, together with his colleagues, believe that further work on studying the properties of graphene will open the way for the mass use of this form of superconductors.

So, for example, they can be used to develop ultra-powerful magnetic resonance imaging systems or quantum computers with excellent protection against various external stimuli.

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