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PC Revue | Science looks at superconductivity at near room temperature



Superconductivity is a special phenomenon of zero electrical resistance that occurs when some of the materials are clocked to a critical temperature. Best superconductors should often be cooled by fascinating helium or dust often to -250 ° C. However, scientists are still waiting for a material that will reach superconductivity at temperatures near room temperature. New study determines that the 0 ° C (273 K) limit of superconductivity will be shortened.

Researchers have found drunk lanthanum dishwashers to have a pressure of 200 gigapascals lowered to lanthanum superhydrate, which is a supersonic in the first free-experiment.

Russell Hemley of George Washington University in Washington, DC and his teachers saw a sudden drop in electrical resistance in this material, which they already under extreme conditions at 7 ° C. Scientists are convinced they have seen phase transition for superconductivity.

The earlier breakthrough of a high temperature-superimposed record in 2014 was linked to the menus of Michael Eremets and his colleague's in the Max Planck Chemical Institute in Mainz, Germany. They then found the superconductivity of sulfide scrubber at -80 ° C, which was not more than 10 ° C more than any other material.

It is already known from the earlier experiments that lanthanum supran hydrate should super-apply to higher temperatures than conventional superconductivity. Experiments were also conducted by Hermes and his team, who realize a phase exit for superconductivity at -23 ° C.

Computational models suggest that outer superhydride can conduct superconductors at temperatures above 300 K, ie at room temperature, but only with the drugs found normally in the middle of & # 39; earth. Room temperature superconductivity should not be much. The question then will be how to use it.

source: technologyreview.com.

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