Wave acoustics for propagation of ultrasound along a vortex array in superfluidA3

Autor:	Edouard Sonin, Jukka P. Pekola, G. K. Tvalashvili, K. Torizuka, Jukka Kyynäräinen
Rok vydání:	1992
Předmět:	Superfluidity Physics Diffraction Amplitude Condensed matter physics Wave propagation Zero sound Wave equation Magnetic field Vortex
Zdroj:	Physical Review B. 45:10536-10543
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.45.10536
Popis:	A wave-acoustics theory has been developed to describe the propagation of zero sound parallel to vortex lines in rotating 3 He-A. We show that a diffraction «shadow» is formed in which the wave amplitude is suppressed by interference around vortices. This phenomenon contributes to the experimentally observed effect of rotation on the sound amplitude and exceeds the attenuation at large core radii. The dependence of the diffraction contribution on the angular velocity changes drastically at the transition from vortices with a finite core to foreless vortices when the magnetic field is decreased to zero
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cb2f2ae6b30132addfa7f94d6d5113f9 https://doi.org/10.1103/physrevb.45.10536 Zobrazit plný text záznamu