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Thermodynamic properties based on the hole-pairing model

โœ Scribed by S. Das; N.C. Das

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
285 KB
Volume
225
Category
Article
ISSN
0921-4534

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โœฆ Synopsis

We study thermodynamic properties of a high-Tc superconductor described by the hole-pairing model. Our earlier formulation is generalized by including effects ofintersite Coulomb repulsion between holes and an expression for the gap function is derived. The temperature dependence of the gap function, J (e, T), the free energies Fs (T) and Fn (T), and the thermodynamic critical field Hc (T) have been studied. These results as predicted by the model are compared with available experimental results.

๐Ÿ“œ SIMILAR VOLUMES

Hole-hole superconducting pairing in the
Hole-hole superconducting pairing in the t-J model induced by long-range spin-wave exchange
โœ V.V Flambaum; M.Yu Kuchiev; O.P Sushkov ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 856 KB

Long-range (r ~ p ~-~ >> lattice spacing) spin-wave exchange produces a very strong pairing of the holes. Solutions of the BCStype equation for the superconducting gap A are found for various symmetries. The strongest pairing corresponds to d wave symmetry. The physical reasons for the strong pairin