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arXiv · cond-mat/9912314

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

Qijin Chen·Ioan Kosztin·K. Levin
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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.

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Qijin Chen, Ioan Kosztin, K. Levin. 1999-12-17. Nodal Quasiparticles versus Phase Fluctuations in High Tc Superconductors: An Intermediate Scenario. https://doi.org/10.1016/s0921-4534(00)00421-4

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