Inelastic X-ray Scattering Study of Phonons in Superconducting CaC6

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dc.creatorUpton, M. H.
dc.creatorWalters, A. C.
dc.creatorHoward, C. A.
dc.creatorRahnejat, K. C.
dc.creatorEllerby, M.
dc.creatorHill, J. P.
dc.creatorMcMorrow, D. F.
dc.creatorAlatas, A.
dc.creatorLeu, Bogdan M.
dc.creatorKu, Wei
dc.date2007-09-08
dc.date2007-10-30
dc.date.accessioned2026-07-07T08:39:02Z
dc.date.available2026-07-07T08:39:02Z
dc.descriptionWe investigate the dispersion and temperature dependence of a number of phonons in the recently discovered superconductor CaC6 utilizing inelastic x-ray scattering. Four [00L] and two ab-plane phonon modes are observed, and measured at temperatures both above and below T_c. In general, our measurements of phonon dispersions are in good agreement with existing theoretical calculations of the phonon dispersion. This is significant in light of several discrepancies between experimental measurements of phonon-derived quantities and theoretical calculations. The present work suggests that the origin of these discrepancies lies in the understanding of the electron-phonon coupling in this material, rather than in the phonons themselves.
dc.identifierhttps://arxiv.org/abs/0709.1179
dc.identifierhttp://arxiv.org/abs/0709.1179
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/140938
dc.subjectSuperconductivity
dc.titleInelastic X-ray Scattering Study of Phonons in Superconducting CaC6
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