Vortex state in a d-wave superconductor

M. Franz; C. Kallin; P. I. Soininen; A. J. Berlinsky; A. L. Fetter

doi:10.1103/PhysRevB.53.5795

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Vortex state in a d-wave superconductor

M. Franz, C. Kallin, P. I. Soininen, A. J. Berlinsky, A. L. Fetter

DOI 10.1103/PhysRevB.53.5795 · Physical Review B

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Abstract

We discuss the physics of the vortex state in a d-wave superconductor, using the phenomenological Ginzburg-Landau theory, where many unusual phenomena arise from the small admixture of the s-wave component induced by spatial variations in the dominant d wave. Properties of an isolated vortex and of the Abrikosov vortex lattice are studied by means of analytic and numerical methods. An isolated vortex has a considerable structure, with four ‘‘extra’’ nodes in the s-wave order parameter symmerically placed around the core and an amplitude forming a four-lobe profile decaying as 1/r2 at large distances. The supercurrent and magnetic-field distributions are also calculated. The Abrikosov lattice is in general oblique with the precise shape determined by the magnetic field and s-d mixing parameter εv. The magnetic-field distribution in the Abrikosov state has two nonequivalent saddle points resulting in the prediction of a double peak line shape in μSR and NMR experiments as a test of a d-wave symmetry. Detailed comparison is made with existing experimental data and experiments are proposed to test for the predicted effects. © 1996 The American Physical Society.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Tl2Ba2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown