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Triplet pairing due to spin-orbit-assisted electron-phonon coupling

Vladimir I. Fal'ko·Boris N. Narozhny
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Abstract

We propose a microscopic mechanism for triplet pairing due to spin-orbit-assisted electron interaction with optical phonons in a crystal with a complex unit cell. Using two examples of electrons with symmetric Fermi surfaces in crystals with either a cubic or a layered square lattice, we show that spin-orbit-assisted electron-phonon coupling can, indeed, generate triplet pairing and that, in each case, it predetermines the tensor structure of a p-wave order parameter.

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Vladimir I. Fal'ko, Boris N. Narozhny. 2005-12-13. Triplet pairing due to spin-orbit-assisted electron-phonon coupling. https://doi.org/10.1103/physrevb.74.012501

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