Nodal Quasiparticles versus Phase Fluctuations in High Tc Superconductors: An Intermediate Scenario

Qijin Chen; Ioan Kosztin; K. Levin

doi:10.1016/S0921-4534(00)00421-4

paper

Nodal Quasiparticles versus Phase Fluctuations in High Tc Superconductors: An Intermediate Scenario

arXiv:cond-mat/9912314 · doi:10.1016/S0921-4534(00)00421-4

Abstract

We explore a BCS Bose Einstein crossover scenario for $0 \leq T \leq T_{c}$ and its implications for the superfluid density and specific heat. The low lying excitations consist of nodal (fermionic) quasi-particles as well as excited (bosonic) pair states. Semi-quantitative comparison with cuprate data is reasonable, with no compelling indications for Landau parameter effects.

M2S-HTSC-VI conference paper (2 pages, 1 figures), using Elsevier style espcrc2.sty