Analytical Formulation of the Local Density of States around a Vortex Core in Unconventional Superconductors

Abstract

On the basis of the quasiclassical theory of superconductivity, we obtain a formula for the local density of states (LDOS) around a vortex core of superconductors with anisotropic pair-potential and Fermi surface in arbitrary directions of magnetic fields. Earlier results on the LDOS of d-wave superconductors and NbSe${}_2$ are naturally interpreted within our theory geometrically; the region with high intensity of the LDOS observed in numerical calculations turns out to the enveloping curve of the trajectory of Andreev bound states. We discuss experimental results on YNi${}_2$B${}_2$C within the quasiclassical theory of superconductivity.

13 pages, 16 figures

References in corpus (1)

• Analytical Result on Electronic States around a Vortex Core in a Noncentrosymmetric Superconductor

Cited by in corpus (6)

• Positions of Point-Nodes in Borocarbide Superconductor YNi2B2C
• Kramer-Pesch approximation for analyzing field-angle-resolved measurements made in unconventional superconductors: A calculation of the zero-energy density of states
• Field-angle dependence of the quasiparticle scattering inside a vortex core in unconventional superconductors
• Effect of uniaxially anisotropic Fermi surface on the quasiparticle scattering inside a vortex core in unconventional superconductors
• Field angle dependence of the zero-energy density of states in unconventional superconductors: analysis of the borocarbide superconductor YNi2B2C
• Phase-Sensitive Flux-Flow resistivity in Unconventional Superconductors