Magnetic-field-induced polarity oscillation of superconducting diode effect
説明
<jats:title>Abstract</jats:title> <jats:p>Recently, an ultimate diode effect, a superconducting diode where an electric current shows the superconducting state in one direction and the normal state in the other direction, has been discovered in a noncentrosymmetric Nb/V/Ta superlattice. Here, we report that the polarity of the superconducting diode shows a sign reversal as a magnetic field is increased. Such a nonlinear behavior of the diode effect is beyond the phenomenology based on the Ginzburg–Landau theory. Based on a recent microscopic study, we propose the crossover and phase transitions of the finite-momentum pairing states as a possible origin of the sign reversals.</jats:p>
収録刊行物
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- Applied Physics Express
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Applied Physics Express 15 (11), 113001-, 2022-11-01
IOP Publishing
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詳細情報 詳細情報について
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- CRID
- 1360016866456767872
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- ISSN
- 18820786
- 18820778
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- データソース種別
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- Crossref
- KAKEN