Wave acoustics for propagation of ultrasound along a vortex array in superfluid 3He-A

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Sonin, E. B.
dc.contributor.author Torizuka, K.
dc.contributor.author Kyynäräinen, J. M.
dc.contributor.author Pekola, Jukka P.
dc.contributor.author Tvalashvili, G. K.
dc.date.accessioned 2015-05-27T09:01:06Z
dc.date.available 2015-05-27T09:01:06Z
dc.date.issued 1992
dc.identifier.citation Sonin, E. B. & Torizuka, K. & Kyynäräinen, J. M. & Pekola, Jukka & Tvalashvili, G. K. 1992. Wave acoustics for propagation of ultrasound along a vortex array in superfluid 3He-A. Physical Review B. Volume 45, Issue 18. 10536-10543. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.45.10536. en
dc.identifier.issn 1098-0121 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/16256
dc.description.abstract A wave-acoustics theory has been developed to describe the propagation of zero sound parallel to vortex lines in rotating 3He-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 coreless vortices when the magnetic field is decreased to zero. We derive conditions for the applicability of the effective-medium theory and the classical geometrical acoustic method in describing sound propagation along vortices. en
dc.format.extent 10536-10543
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society (APS) en
dc.relation.ispartofseries Physical Review B en
dc.relation.ispartofseries Volume 45, Issue 18
dc.rights © 1992 American Physical Society (APS). http://www.aps.org/ en
dc.subject.other Physics en
dc.title Wave acoustics for propagation of ultrasound along a vortex array in superfluid 3He-A en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Physical Society (APS)
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Department of Applied Physics en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.subject.keyword wave-acoustics theories en
dc.subject.keyword propagation of zero sound en
dc.subject.keyword vortices en
dc.identifier.urn URN:NBN:fi:aalto-201505262895
dc.type.dcmitype text en
dc.identifier.doi 10.1103/physrevb.45.10536
dc.type.version Final published version en

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