Quasiparticles and Phase Fluctuations in High Tc Superconductors

Abstract

We argue based on theoretical considerations and analysis of experimental data that quasiparticle excitations near the nodes determine the low temperature properties in the superconducting state of cuprates. Quantum effects of phase fluctuations are shown to be quantitatively important, but thermal effects are small for $T\ll T_c$. An anisotropic superfluid Fermi liquid phenomenology is presented for the effect of quasiparticle interactions on the temperature and doping dependence of the low $T$ penetration depth.

M2S-HTSC-VI, doping dependence of phase flucns revised, final version

References in corpus (2)

• Electronic Spectra and Their Relation to the (pi,pi) Collective Mode in High-Tc Superconductors
• Quasiparticles in the superconducting state of Bi2Sr2CaCu2O8

Cited by in corpus (6)

• Phase Fluctuations and Pseudogap Phenomena
• Theory of Superconductivity in Strongly Correlated Electron Systems
• The interplay between superconductivity and non-Fermi liquid at a quantum-critical point in a metal
• Superconductivity above a quantum critical point in a metal -- gap closing vs gap filling, Fermi arcs, and pseudogap behavior
• Gorkov equations for a pseudo-gapped high temperature superconductor
• Fermi liquid interactions and the superfluid density in d-wave superconductors