Optical studies of charge dynamics in c-axis oriented superconducting MgB2 films

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dc.creatorTu, J. J.
dc.creatorCarr, G. L.
dc.creatorPerebeinos, V.
dc.creatorHomes, C. C.
dc.creatorStrongin, M.
dc.creatorAllen, P. B.
dc.creatorKang, W. N.
dc.creatorChoi, E. M.
dc.creatorKim, H. J.
dc.creatorLee, Sung-Ik
dc.date2001-07-16
dc.date.accessioned2026-07-07T02:42:11Z
dc.date.available2026-07-07T02:42:11Z
dc.descriptionTemperature dependent optical conductivities and DC resistivity of c-axis oriented superconducting (Tc = 39.6 K) MgB2 films (~ 450 nm) have been measured. The normal state ab-plane optical conductivities can be described by the Drude model with a temperature independent Drude plasma frequency of ω_{p,D}=13,600 +/- 100 cm-1 or 1.68 +/- 0.01 eV. The normal state resistivity is fitted by the Bloch-Gruneisen formula with an electron-phonon coupling constant λ_{tr} = 0.13 +/- 0.02. The optical conductivity spectra below T_c of these films suggest that MgB2 is a multi-gap superconductor.
dc.description4 pages, 4 figures, submitted to PRL on July 2, 2001
dc.identifierhttps://arxiv.org/abs/cond-mat/0107349
dc.identifierhttp://arxiv.org/abs/cond-mat/0107349
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18038
dc.subjectSuperconductivity
dc.titleOptical studies of charge dynamics in c-axis oriented superconducting MgB2 films
dc.typetext

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