Coupling of Rayleigh-Like Waves with Zero Sound Modes in Normal sup 3 He

摘要

The damping of a wave of arbitrary omega and k traveling at an interface between normal sup 3 He and a solid is examined. It is found that the absorption spectrum contains singularities at the thresholds for the propagation of longitudinal and transverse zero sound as well as at the Fermi velocity. (ERA citation 09:034577)