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The features of the collective modes in aerogels filled with superfluid helium

The velocity of fast and slow collective modes of 90, 94 and 98% porosity aerogels filled with superfluid helium were measured by means of low-frequency resonant technique at temperatures 0.5–2.5 K. The temperature dependences of velocities of both modes are compared with the hydrodynamic theory whi...

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Bibliographic Details
Main Authors: Zadorozhko, A.A., Chagovets, V.K., Rudavskii, E.Ya., Sheshin, G.A., Kekutia, Sh.E., Chkhaidze, N.D., Mulders, N.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2009
Series:Физика низких температур
Subjects:
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/117405
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