Photoacoustic wave propagating from normal into superconductive phases in Pb single crystals

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dc.creatorIwanaga, Masanobu
dc.date2005-04-05
dc.date2005-06-09
dc.date.accessioned2026-07-07T03:04:25Z
dc.date.available2026-07-07T03:04:25Z
dc.descriptionPhotoacoustic (PA) wave has been examined in a superconductor of the first kind, Pb single crystal. The PA wave is induced by optical excitation of electronic state and propagates from normal into superconductive phases below T$_{\rm C}$. It is clearly shown by wavelet analysis that the measured PA wave includes two different components. The high-frequency component is MHz-ultrasonic and the relative low-frequency one is induced by thermal wave. The latter is observed in a similar manner irrespective of T$_{\rm C}$. On the other hand, the MHz-frequency component is obviously enhanced below T$_{\rm C}$. The behavior is reproduced by the change of attenuation of longitudinal ultrasonic wave and is consistent with BCS theory.
dc.description5 pages, 5 figures (fig.3 is colored), RevTeX4; the text is modified
dc.identifierhttps://arxiv.org/abs/cond-mat/0504090
dc.identifierhttp://arxiv.org/abs/cond-mat/0504090
dc.identifierPhys. Rev. B 72, 012509 (2005).
dc.identifierdoi:10.1103/PhysRevB.72.012509
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26133
dc.subjectMaterials Science
dc.titlePhotoacoustic wave propagating from normal into superconductive phases in Pb single crystals
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