Interpretation of the tunnel characteristics of HTSC cuprates in the model of superconducting K-pairing

Kopaev, Yu. V.; Sofronov, V.M.

doi:10.1016/j.physleta.2005.06.109

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“…Nontrivial momentum dependence of the coherence factors resulting from the η K -pairing scheme allows to explain observed tunnel conductance asymmetry, peak and dip-hump structure of both tunnel and photoemission spectra [29], and typical of cuprates features [30] of Andreev reflection [31].…”

Section: Discussionmentioning

confidence: 99%

Superconductivity from Repulsion: Ginzburg–Landau Phenomenology of Cuprates

Belyavsky

Kopaev

2006

J Supercond

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We develop Ginzburg-Landau approach to the problem of superconducting pairing with large momentum under screened Coulomb repulsion (η K -pairing). Two-component order parameter arising in this scheme can be associated with charge and orbital current degrees of freedom of the relative motion of η K -pair corresponding to superconducting and orbital antiferromagnetic ordered states, respectively. All basic features of the phase diagram of cuprate superconductors result directly from the η K -pairing concept.

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Section: Discussionmentioning

confidence: 99%