Porosity dependence of sound propagation in liquid-4He-filled aerogel

dc.contributor.author	Matsumoto K.
dc.contributor.author	Matsuyama Y.
dc.contributor.author	Tayurskii D.
dc.contributor.author	Tajiri K.
dc.date.accessioned	2018-09-17T20:19:11Z
dc.date.available	2018-09-17T20:19:11Z
dc.date.issued	2004
dc.identifier.issn	0021-3640
dc.identifier.uri	https://dspace.kpfu.ru/xmlui/handle/net/133338
dc.description.abstract	Longitudinal sound-wave propagation has been studied in an aerogel-liquid 4He system for various porosities of aerogel. The superfluid transition was identified as the absorption peak, whose magnitude was suppressed by aerogel. The sound velocity was analyzed within a hydrodynamic theory in both normal and superfluid phases. The absorption peak due to phonon-roton interaction around 1 K was not observed even with the most porous aerogel. The low-temperature sound velocity and attenuation show that direct collisions of phonons with aerogel strands play an important role in the acoustic properties. © 2004 MAIK "Nauka/Interperiodica".
dc.relation.ispartofseries	JETP Letters
dc.title	Porosity dependence of sound propagation in liquid-4He-filled aerogel
dc.type	Article
dc.relation.ispartofseries-issue	2
dc.relation.ispartofseries-volume	80
dc.collection	Публикации сотрудников КФУ
dc.relation.startpage	109
dc.source.id	SCOPUS00213640-2004-80-2-SID20644435785

Files in this item

Size: 43.78Kb

Format: PDF

Публикации сотрудников КФУ Scopus [24551]
Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.