Discover More: Study introduces the intrinsic superconducting diode effect

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Study introduces the 

intrinsic superconducting 

diode effect

Date Posted: 8th March 2022



In 2020, Prof. Teruo Ono and his colleagues at Kyoto University reported the very first observation of a magnetically controllable, superconducting diode effect in an artificial superlattice.

Diode: A semiconductor device that allows current to flow easily in one direction, but restricts current from flowing in the opposite direction.

The diode effect introduces an inevitable energy loss due to the finite resistance. A superconducting diode is one that has zero resistance in only one direction.

Superconductor: A superconductor is a material that achieves superconductivity, which is a state of matter that has no electrical resistance and does not allow magnetic fields to penetrate.

A superconducting diode that has zero resistance in only one direction is realized in an artificially engineered superlattice without inversion symmetry, enabling directional charge transport without energy loss.

Superlattice: A superlattice is a structure made up of alternating layers of different materials. These structures are used in the creation of new forms of semiconductors that exhibit different properties than their included materials.

The superconducting diode effect is a phenomenon that produces a unique and special type of diode. The characterizing feature of this diode is that, inside it, electric resistance vanishes in one direction and remains finite in the other. This feature is referred to as the 'nonreciprocity of the critical current."
 
This is just a summary of the actual article on phys.org, don't forget to read more!
 

Source: Kyoto University

Read More: https://phys.org/news/2022-02-intrinsic-superconducting-diode-effect.html 

Citation:

Fadelli, I. (2022, February 11). Study introduces the intrinsic superconducting diode effect. Phys.org; Phys.org. https://phys.org/news/2022-02-intrinsic-superconducting-diode-effect.html

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