Signatures of interband scattering in spectroscopic experiments on $MgB_2$

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dc.creatorMoca, C. P.
dc.creatorJanko, B.
dc.date2002-10-21
dc.date.accessioned2026-07-07T02:47:50Z
dc.date.available2026-07-07T02:47:50Z
dc.descriptionWithin a two-band, strong coupling model we analyze SIS-tunneling conductance, Raman scattering and optical conductivity measured on $MgB_2$ samples. We find that features observed in tunneling and Raman spectroscopy at intermediate energies $ω=Δ_σ+Δ_π\simeq 8÷10meV$ can be consistently explained when incoherent scattering between $σ$ and $π$ band is considered. We calculate the optical conductivity and find that strong coupling effects are important for explaining the presently available data, and predict the location and magnitude of interband scattering features for this spectroscopic probe as well.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0210445
dc.identifierhttp://arxiv.org/abs/cond-mat/0210445
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20160
dc.subjectSuperconductivity
dc.titleSignatures of interband scattering in spectroscopic experiments on $MgB_2$
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