Far-infrared absorption and the metal-to-insulator transition in hole-doped cuprates

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dc.creatorLupi, S.
dc.creatorNicoletti, D.
dc.creatorLimaj, O.
dc.creatorBaldassarre, L.
dc.creatorOrtolani, M.
dc.creatorCalvani, P.
dc.creatorOno, S.
dc.creatorAndo, Yoichi
dc.date2009-05-05
dc.date.accessioned2026-07-07T13:11:52Z
dc.date.available2026-07-07T13:11:52Z
dc.descriptionBy studying the optical conductivity of BSLCO and YCBCO, we show that the metal-to-insulator transition (MIT) in these hole-doped cuprates is driven by the opening of a small gap at low T in the far infrared. Its width is consistent with the observations of Angle-Resolved Photoemission Spectroscopy in other cuprates, along the nodal line of the k-space. The gap forms as the Drude term turns into a far-infrared absorption, whose peak frequency can be approximately predicted on the basis of a Mott-like transition. Another band in the mid infrared softens with doping but is less sensitive to the MIT.
dc.descriptionTo be published on Physical Review Letters
dc.identifierhttps://arxiv.org/abs/0905.0568
dc.identifierhttp://arxiv.org/abs/0905.0568
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229419
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleFar-infrared absorption and the metal-to-insulator transition in hole-doped cuprates
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