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Superconducting diode effect in multiphase superconductors
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DOI：10.1103/PhysRevB.110.184509.png)
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We identify a particular mechanism for the intrinsic superconducting diode effect (SDE) in multiphase superconductors. Using a Ginzburg-Landau and a microscopic two-band model, we find phase transitions into a mixed phase with finite-momentum Cooper pairs and SDE with high (including maximal) diode efficiencies, despite the individual phases exhibiting no SDE and equal inversion parity. We thus show that parity mixing-invoked in previous proposals-is not a crucial ingredient for SDE. The new mechanism may be relevant in a multitude of known multiphase superconductors like UTe2.
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3.7
论文数:
15.4W
被引数:
41.0W
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