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arXiv · 1709.08297

Nuclear Magnetic Resonance in Low-Symmetry Superconductors

D. C. Cavanagh·B. J. Powell
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Abstract

We consider the nuclear spin-lattice relaxation rate, $1/T_1T$ in superconductors with accidental nodes. We show that a Hebel-Slichter-like peak occurs even in the absence of an isotropic component of the superconducting gap. The logarithmic divergence found in clean, non-interacting models is controlled by both disorder and electron-electron interactions. However, for reasonable parameters, neither of these effects removes the peak altogether.

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D. C. Cavanagh, B. J. Powell. 2017-10-08. Nuclear Magnetic Resonance in Low-Symmetry Superconductors. https://doi.org/10.1103/physrevb.97.024509

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