Fermi liquid theory applied to a film on an oscillating substrate

Article

关键词: TRANSVERSE ZERO SOUND;    ACOUSTIC-IMPEDANCE;    NORMAL HE-3;    SUPERFLUID HE-3;    QUANTUM LIQUIDS;    TEMPERATURES;    BOUNDARY;    VELOCITY;   

DOI  :  10.1103/PhysRevB.94.184103

来源: SCIE

【 摘 要 】

We consider a film of a normal-state Fermi liquid on a planar substrate. Landau's Fermi liquid theory is applied to calculate the linear response of the film to transverse oscillation of the substrate. The response consists of a collective transverse zero-sound mode, as well as incoherent quasiparticle excitations of the degenerate fermions. We calculate numerically the acoustic impedance of the film under a wide range of conditions relevant to normal-state He-3 at millikelvin temperatures. Some cases of known experiments are studied but most of the parameter range has not yet been tested experimentally.

【 授权许可】

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