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2006 | 109 | 4-5 | 493-498
Article title

On Possibility of Realization of d- or p-Wave Symmetry States in Anisotropic Superconductors

Content
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EN
Abstracts
EN
We consider a model of high-T_c superconductors with an anisotropic boson-mediated pairing mechanism corresponding to the nearest-neighbor interactions, and the one-particle dispersion relation characterized by 2D Fermi surface nesting. Based upon the tight-binding or t-J approaches with half-filling we show that the effective pairing potential coefficients and the dispersion relation, which can be characterized by the parameterη=2t_1/t_0, have a diverse and mutually competing influence on the values of transition temperatures. The spin-singlet d-wave symmetry superconducting state is realized for small values ofη, whereas for sufficiently large values, the spin-triplet p-wave symmetry superconducting state should be formed. The specific heat jump and the isotope shift, as functions of the parameter η, are evaluated for the d- and p-wave symmetry.
Keywords
EN
Year
Volume
109
Issue
4-5
Pages
493-498
Physical description
Dates
published
2006-04
received
2005-09-25
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv109n407kz
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