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Ultrasonic attenuation in d-wave superconductors

Vladimir N. Kostur·Jayanta K. Bhattacharjee·Richard A. Ferrell
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Abstract

The longitudinal ultrasonic attenuation at low temperatures for a $d$-wave superconducting order parameter is examined. The ratio of the superconducting to normal state attenuation, $α_{s}/α_{n}$, depends strongly on the direction of propagation of ultrasound with maxima corresponding to nodes of the order parameter on the Fermi surface. We propose that measurements of ultrasonic attenuation in a single crystal of the high-$T_{c}$ superconductors can give the information regarding the position of nodes.

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Vladimir N. Kostur, Jayanta K. Bhattacharjee, Richard A. Ferrell. 1995-06-10. Ultrasonic attenuation in d-wave superconductors. https://arxiv.org/abs/cond-mat/9506045

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