Vortex lattice effects on low-energy excitations in d-wave and s-wave superconductors

Generic features of the low-energy excitations in the vortex lattice state are examined by comparatively studying the self-consistent solutions of the quasiclassical Eilenberger theory both for d(x2)-(y2)-wave and s-wave pairings. This low-energy physics associated with a vortex core, nodal structure, and quasiparticle transfer between vortices governs physical properties of the vortex such as the field dependences of the zero-energy density of states, the internal field distribution, and the shrinkage of the core radius. Eminent differences between two pairings an highlighted to help analyze experimental data. [S0163-1829(99)00102-2].