Charge order, metallic behavior and superconductivity in La_{2-x}Ba_xCuO_4 with x=1/8

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dc.creatorHomes, C. C.
dc.creatorDordevic, S. V.
dc.creatorGu, G. D.
dc.creatorLi, Q.
dc.creatorValla, T.
dc.creatorTranquada, J. M.
dc.date2006-03-28
dc.date.accessioned2026-07-07T07:05:02Z
dc.date.available2026-07-07T07:05:02Z
dc.descriptionThe ab-plane optical properties of a cleaved single crystal of La_{2-x}Ba_xCuO_4 for x=1/8 (T_c ~ 2.4 K) have been measured over a wide frequency and temperature range. The low-frequency conductivity is Drude-like and shows a metallic response with decreasing temperature. However, below ~ 60 K, corresponding to the onset of charge-stripe order, there is a rapid loss of spectral weight below about 40 meV. The gapping of single-particle excitations looks surprisingly similar to that observed in superconducting La_{2-x}Sr_{x}CuO_4, including the presence of a residual Drude peak with reduced weight; the main difference is that the lost spectral weight moves to high, rather than zero, frequency, reflecting the absence of a bulk superconducting condensate.
dc.description4 pages, with 1 table and 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0603763
dc.identifierhttp://arxiv.org/abs/cond-mat/0603763
dc.identifierPhys. Rev. Lett. 96, 257002 (2006)
dc.identifierdoi:10.1103/PhysRevLett.96.257002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109540
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleCharge order, metallic behavior and superconductivity in La_{2-x}Ba_xCuO_4 with x=1/8
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