Spin-polarized local density of states in the vortex state of helical p-wave superconductors

Abstract

Properties of the vortex state in helical p-wave superconductor are studied by the quasi-classical Eilenberger theory. We confirm the instability of the helical p-wave state at high fields and that the spin-polarized local density of states M(E,r) appears even when Knight shift does not change. This is because the vorticity couples to the chirality of up-spin pair or down-spin pair of the helical state. In order to identify the helical p-wave state at low fields, we investigate the structure of the zero-energy M (E = 0, r) in the vortex states, and also the energy spectra of M (E, r).

5 pages, 5 figures

References in corpus (9)

• Scanning tunneling spectroscopy of high-temperature superconductors
• Observation of Majorana fermions with spin selective Andreev reflection in the vortex of topological superconductor
• Evolution of density of states and spin-resolved "checkerboard" pattern associated with Majorana bound state
• Spin Triplet Superconductivity in Sr2RuO4 due to Orbital and Spin Fluctuations: Analysis by Two-Dimensional Renormalization Group Theory
• Spin-triplet superconductivity in Sr2RuO4 due to orbital and spin fluctuations: Analyses by two-dimensional renormalization group theory and self-consistent vertex-correction method
• Model for Vortex-core tunneling spectroscopy of chiral p-wave superconductors via odd-frequency pairing states
• Symmetry protected vortex bound state in superfluid ${}^3$He B-phase
• Site-selective NMR for odd-frequency Cooper pairs around vortex in chiral p-wave superconductors
• Effects of Weak and Strong Scatterers on the Spectra of Vortex Andreev Bound States in Two-Dimensional Chiral p-wave Superconductors