Spin-orbit scattering in d-wave superconductors

Details Spin-orbit scattering in d-wave superconductors Spin-orbit scattering in d-wave superconductors

1999-05-18

arxiv.org/abs/cond-mat/9905262v1

Europhys. Lett., vol.48 pag.306 (1999)

Physics

Condensed Matter

Superconductivity

9 pages, 3 postscript figures, euromacr.tex-europhys.sty, submitted to Europhysics Letters

Scientific paper

10.1209/epl/i1999-00482-6

When non-magnetic impurities are introduced in a d-wave superconductor, both thermodynamic and spectral properties are strongly affected if the impurity potential is close to the strong resonance limit. In addition to the scalar impurity potential, the charge carriers are also spin-orbit coupled to the impurities. Here it is shown that (i) close to the unitarity limit for the impurity scattering, the spin-orbit contribution is of the same order of magnitude than the scalar scattering and cannot be neglected, (ii) the spin-orbit scattering is pair-breaking and (iii) induces a small id_xy component to the off-diagonal part of the self-energy.

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