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A unified description of s-, p- and d-wave superconductivity

✍ Scribed by Luis A. Pérez; J. Samuel Millán; Chumin Wang

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
171 KB
Volume
359-361
Category
Article
ISSN
0921-4526

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✦ Synopsis

We report a comparative study of the s-, p-and d-symmetry superconducting states in square lattices within a Hubbard model, in which correlated-hopping interactions are considered in addition to the repulsive Coulomb interactions. This study is carried out by means of the BCS formalism. The results show that the first and second neighbors correlated hoppings favour s-and d-symmetry pairings, respectively. Moreover, an infinitesimal distortion of the right angles in the square lattice induces the appearance of a p-wave (spin-triplet) superconducting state.

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