Superconducting order parameter in heavily overdoped $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$: a global quantitative analysis

Abstract

A systematic analysis of the complex lineshape at $(\pi ,0)$ of heavily overdoped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ is presented. We show that a coherent component in the quasi-particle excitation is correlated with the superfluid density throughout the entire doping range and suggest it is a direct measure of the order parameter of high temperature superconductors.

arXiv comment4 RevTex4 pages, 4 eps figures (Fig. 3 revised after publication on PRB)

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Cited by in corpus (7)

• The magnetic nature of superconductivity in doped cuprates
• Superconducting coherence peak in the electronic excitations of a single layer cuprate superconductor $B{i}_{2}S{r}_{1.6}L{a}_{0.4}Cu{O}_{6+\delta }$
• Kinetic-energy driven superconductivity in cuprate superconductors
• Enhancement of superconducting transition temperature by the additional second neighbor hopping t' in the t-J model
• Colossal band renormalization and stoner ferromagnetism induced by electron-antiferromagnetic-magnon coupling
• Dependence of the superconducting effective mass on doping in cuprates
• Why there is a difference between optimal doping for maximal Tc and critical doping for highest ρ_s in cuprate superconductors?