Ultrasonic experiments on rotating superfluid 3HeA1

Autor:	G. K. Tvalashvili, K. Torizuka, Olli V. Lounasmaa, J. M. Kyynäräinen, Jukka P. Pekola, Antti Manninen
Rok vydání:	1990
Předmět:	Physics Acoustics Geometrical acoustics Zero sound Mechanics Condensed Matter Physics Rotation Electronic Optical and Magnetic Materials Magnetic field Vortex Superfluidity Ultrasonic sensor Electrical and Electronic Engineering Acoustic attenuation
Zdroj:	Torizuka, K, Pekola, J P, Kyynäräinen, J M, Manninen, A J, Lounasmaa, O V & Tvalashvili, G K 1990, ' Ultrasonic experiments on rotating superfluid 3 HeA 1 ', Physica B: Physics of Condensed Matter, vol. 165-166, no. PART 1, pp. 623-624 . https://doi.org/10.1016/S0921-4526(90)81161-G
ISSN:	0921-4526
DOI:	10.1016/s0921-4526(90)81161-g
Popis:	The first experiments on rotating 3HeA1 have been done using pulsed zero sound transmission techniques at several pressures in magnetic fields up to 1 T. Preliminary analysis of our data by a geometrical acoustics method suggests that the vortex cores in 3HeA1 are larger than in 3HeA2. This result is based on the strong and highly non-linear rotation dependence of sound attenuation in 3HeAl. Conclusions about the type of vortices in 3HeA1 cannot be made at present owing to lack of theory.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6c6b650ef1898430c06d16ebe27157b https://doi.org/10.1016/s0921-4526(90)81161-g Zobrazit plný text záznamu