Ultrasonic attenuation in clean d-wave superconductors
I. Vekhter, E. J. Nicol, J. P. Carbotte
TL;DR
This paper investigates how ultrasonic waves are attenuated in clean d-wave superconductors, revealing a linear temperature dependence at low temperatures that helps determine key transport parameters.
Contribution
It demonstrates the universal linear temperature dependence of ultrasonic attenuation in all in-plane directions of clean d-wave superconductors at low temperatures.
Findings
Attenuation coefficient is linear in temperature at low T
Linear coefficient can determine transport parameters
Results applicable to all in-plane directions
Abstract
We consider the attenuation of longitudinal ultrasonic waves in a clean two-dimensional d-wave superconductor. We show that the attenuation coefficient is linear in temperature at low temperatures for all in-plane directions of the propagation of the ultrasound, and that the coefficient of the linear term can be used to determine the parameters crucial for the low temperature transport in these compounds.
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