Quasiparticle Excitation Spectrum of an Isolated Vortex in a High--Temperature Superconductor

Details Quasiparticle Excitation Spectrum of an Isolated Vortex in a High--Temperature Superconductor Quasiparticle Excitation Spectrum of an Isolated Vortex in a High--Temperature Superconductor

1998-12-08

arxiv.org/abs/cond-mat/9812132v1

Physics

Condensed Matter

Superconductivity

8 pages, Latex, 3 eps figures, submitted to Physica C, Proceedings of First Euroconference on Anomalous Complex Superconductor

Scientific paper

10.1016/S0921-4534(99)00162-8

The quasiparticle energy spectrum of an isolated vortex in a clean layered d-wave superconductor is calculated. The Bogoliubov--de Gennes equations are solved perturbatively, within the model of step-variation of the gap function, adjusting the Caroli, de Gennes and Matricon approach for low-lying excitations in cuprates. A large peak in the density of states in a "pancake" vortex is found, as a consequence of two-dimensionality and strong coupling.

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