Two different quasiparticle scattering rates in the vortex-line liquid phase of layered d-wave superconductors

[摘要] We carry out a quantum-mechanical analysis of the behavior of nodal quasiparticles in the vortex-line liquid phase of planar d-wave superconductors. Applying path-integral technique, we calculate a number of experimentally relevant observables, and demonstrate that in the low-field regime the quasiparticle scattering rates deduced from photoemission and thermal transport data can be markedly different from that extracted from tunneling, specific heat, superfluid stiffness, or spin-lattice relaxation time.

[关键词] QUASI-PARTICLE TRANSPORT;RANDOM MAGNETIC-FIELD;MIXED-STATE;UNCONVENTIONAL SUPERCONDUCTORS;SPECTRUM;CONDUCTIVITY;FLUCTUATIONS;VORTICES;IMPURITY