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arXiv · 2406.09987

Photogalvanic phenomena in superconductors supporting intrinsic diode effect

S. V. Mironov·A. S. Mel'nikov·A. I. Buzdin
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Abstract

In this work we suggest a phenomenological theory of photogalvanic phenomena in superconducting materials and structures revealing the diode effect. Starting from a generalized London model including the quadratic nonlinearity in the relation between the supercurrent and superfluid velocity we show that the electromagnetic wave incident on the superconductor can generate a nontrivial superconducting phase difference between the ends of the sample. Being enclosed in a superconducting loop such phase battery should generate a dc supercurrent circulating in the loop. Increasing the electromagnetic wave intensity one can provoke the switching between the loop states with different vorticities.

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S. V. Mironov, A. S. Mel'nikov, A. I. Buzdin. 2024-06-14. Photogalvanic phenomena in superconductors supporting intrinsic diode effect. https://doi.org/10.1103/physrevb.109.l220503

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