Nodal Quasiparticles versus Phase Fluctuations in High Tc Superconductors: An Intermediate Scenario
classification
❄️ cond-mat.supr-con
cond-mat.str-el
keywords
nodalscenariobosebosoniccomparisoncompellingconsistcrossover
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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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