Characteristics of nonlinear sound attenuation in superconducting gallium
V. D. FilPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovV. I. DenisenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kov
ABI
Аннотация
The propagation of sound waves in superconducting gallium with varying degrees of purity is investigated over a broad range of temperatures. The nonlinearity is observed to depend comparatively weakly on the magnitude of electron scattering. The validity of various mechanisms for explaining the observed effects is discussed.
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