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DOE OSTI · 1825436

Disorder-robust $\textit{p}$-wave pairing with odd-frequency dependence in normal metal–conventional superconductor junctions [plus supplemental information]

Triola, Christopher Lawrence Charles·Lothman, Tomas·Cayao, Jorge·Black-Schaffer, Annica M.
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Abstract

We investigate the induced superconducting pair correlations in junctions between a conventional spin-singlet s-wave superconductor and a disordered normal metal. Decomposing the pair amplitude based on its symmetries in the time domain, we demonstrate that the odd-time, or equivalently odd-frequency, spin-singlet p-wave correlations are both significant in size and entirely robust against random nonmagnetic disorder. We find that these odd-frequency correlations can even be generated by disorder. Our results show that anisotropic odd-frequency pairing represent an important fraction of the proximity-induced correlations in disordered superconducting hybrid structures.

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75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITYBogoliubov-de Gennes equationsGreen's function methodsImpurities in superconductorsMethods in superconductivityOdd-frequency superconductivityPairing mechanismsProximity effectSpin-singlet pairingSuperconducting phase transitionUnconventional superconductorsp-wave

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Triola, Christopher Lawrence Charles, Lothman, Tomas, Cayao, Jorge, Black-Schaffer, Annica M.. 2021-09-02. Disorder-robust $\textit{p}$-wave pairing with odd-frequency dependence in normal metal–conventional superconductor junctions [plus supplemental information]. https://doi.org/10.1103/physrevb.104.094503

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