Quantization of the quasiparticle spectrum in the mixed state of d-wave superconductors

1 January 1999

journal article
Published by IOP Publishing in Journal of Physics: Condensed Matter

Vol. 11 (21) , 4219-4229
https://doi.org/10.1088/0953-8984/11/21/309

Abstract

We have investigated the distinctive features of the band spectrum, eigenfunctions, and density of states (DOS) for low-lying quasiparticle excitations in the mixed state of clean d-wave superconductors (H_c1<<H<<H_c2). Our study is based on an approximate analytical solution of the Bogoliubov-de Gennes equations for quasiparticles with momenta close to gap node directions. Both the quantized energy spectrum and the spatially averaged residual DOS are shown to depend fundamentally on the vortex lattice geometry.

Keywords

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