Infrared absorption in superconducting MgB2

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dc.creatorSundar, C. S.
dc.creatorBharathi, A.
dc.creatorPremila, M.
dc.creatorsairam, T. N.
dc.creatorKalavathi, S.
dc.creatorReddy, G. L. N.
dc.creatorSastry, V. S.
dc.creatorHariharan, Y.
dc.creatorRadhakrishnan, T. S.
dc.date2001-04-19
dc.date.accessioned2026-07-07T02:41:08Z
dc.date.available2026-07-07T02:41:08Z
dc.descriptionInfrared absorption measurements in the range of 125 to 700 cm^(-1) have been carried out as a function of temperature upto 5 K in MgB2. The absorption spectrum is characterised by a broad band centred at 485 cm^{-1}, with shoulders at 333 and 387 cm^{-1}. Studies on the temperature dependence of absorption, indicate that these modes initially harden with the lowering of temperature, and this trend is arrested at ~ 100 K, below which they soften. Further, in the case of the mode at 333 cm^{-1}, there is a distinct softening associated with the superconducting transition at 39 K. The implications of these experimental results in the context of superconductivity in MgB2 are discussed.
dc.description15 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0104354
dc.identifierhttp://arxiv.org/abs/cond-mat/0104354
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17627
dc.subjectSuperconductivity
dc.titleInfrared absorption in superconducting MgB2
dc.typetext

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