Attenuation of Second Sound in Superfluid3He−A1

Autor:	de Vegvar Pg, T. Sato, Okuda Y, H. Kojima, Coleman Jj
Rok vydání:	2000
Předmět:	Physics Superfluidity Stokes' law of sound attenuation Condensed matter physics Attenuation coefficient Attenuation Second sound Dissipative system Phase (waves) General Physics and Astronomy Magnetic field
Zdroj:	Physical Review Letters. 84:1515-1518
ISSN:	1079-7114 0031-9007
Popis:	The attenuation of second sound (spin-entropy) wave in the superfluid A1 phase has been measured in magnetic fields up to 11 T and to sufficiently high frequency to observe the bulk attenuation proportional to the square of frequency. The measured attenuation coefficient is compared with the existing theories of hydrodynamics and dissipative coefficients. The resulting "excess" attenuation is discussed in terms of the temperature dependent spin diffusion coefficient in the superfluid.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::315f62f63b972415989a77e714cf94e1 https://doi.org/10.1103/physrevlett.84.1515 Zobrazit plný text záznamu