UNSPECIFIED. (1999) Interplay between extended s-wave and d-wave superconductivity in the nonlinear field representation. PHYSICS LETTERS A, 263 (4-6). pp. 458-464. ISSN 0375-9601

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Abstract

We consider a Hubbard type Hamiltonian for a two-dimensional superconducting plane with a tight-binding dispersion relation. In addition, the energy gap is considered to be either an extended s-wave, a d-wave form or a combination of both. We then derive the resultant coupled field equations of motion for the spin-up and spin-down fields. The equations are of a highly nonlinear character but are still tractable. The s-wave and d-wave regimes are treated separately. It is shown that the superposition of s- and d-wave components results in the emergence of striped patterns of superconducting order parameter densities and of square and triangular order parameter distributions. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Journal or Publication Title:	PHYSICS LETTERS A
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0375-9601
Date:	6 December 1999
Volume:	263
Number:	4-6
Number of Pages:	7
Page Range:	pp. 458-464
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/13839

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