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Anisotropic transport properties in a layered d+s-wave superconductor (1996)

Nicol, E. J. ; Kim, Heesang ; Palumbo, Mario ; [weitere]

Springer

Journal of low temperature physics 105 (1996), S. 539-544

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ISSN: 1573-7357

Schlagwort(e): 74.20.−z ; 74.25.Gz ; 74.20.Fg

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract Recent measurements of the penetration depth and optical conductivity in YBa2Cu3Ox (YBCO) single crystals suggest the possibility of an order parameter with d+s-wave symmetry. We present results from calculations of both the anisotropic low temperature penetration depth and the frequency-dependent conductivity for a layered superconductor with such a pairing symmetry. The system is modelled as a stack of weakly coupled, two dimensional superconducting planes, and the effect of non-magnetic impurity scattering in both Born and unitarity limits is examined.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00768441

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Digitale Medien

Electrodynamic response in cuprate superconductors (1995)

Graf, M. J. ; Palumbo, M.

Springer

Journal of low temperature physics 99 (1995), S. 283-286

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ISSN: 1573-7357

Schlagwort(e): 74.20.Mn ; 74.80.Dm ; 74.25.Fy ; 74.25.Nf ; 74.72.−h

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract We present results from a microscopic theory of the electrodynamic response (E∥ĉ) in high-Tc superconductors for an array of coupled superconducting layers. In this model each layer is described by a two-dimensional Fermi liquid, and interlayer coupling is mediated by thermally activated incoherent scattering processes. We discuss the surface resistance in the c-direction and show that a d-state symmetry of the order parameter leads to an anomalous T-dependence at frequencies below Δo, and imposes rather stringent conditions on the interlayer coupling.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00752294

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