Mixed-State Quasiparticle Spectrum for d-wave Superconductors

Details Mixed-State Quasiparticle Spectrum for d-wave Superconductors Mixed-State Quasiparticle Spectrum for d-wave Superconductors

1995-05-26

arxiv.org/abs/cond-mat/9505142v1

Physics

Condensed Matter

10 pages, REVTEX3.0, 3 figures available upon request

Scientific paper

10.1103/PhysRevB.52.R3876

Controversy concerning the pairing symmetry of high-$T_c$ materials has motivated an interest in those measurable properties of superconductors for which qualitative differences exist between the s-wave and d-wave cases. We report on a comparison between the microscopic electronic properties of d-wave and s-wave superconductors in the mixed state. Our study is based on self-consistent numerical solutions of the mean-field Bogoliubov-de Gennes equations for phenomenological BCS models which have s-wave and d-wave condensates in the absence of a magnetic field. We discuss differences between the s-wave and the d-wave local density-of-states, both near and away from vortex cores. Experimental implications for both scanning-tunneling-microscopy measurements and specific heat measurements are discussed.

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