Superconducting order parameter in heavily overdoped $Bi_2 Sr_2 Ca Cu_2 O_{8+\delta}$: a global quantitative analysis

R. H. He; D. L. Feng; H. Eisaki; J. -i. Shimoyama; K. Kishio; G. D. Gu

doi:10.1103/PhysRevB.69.220502

Superconducting order parameter in heavily overdoped $Bi_2 Sr_2 Ca Cu_2 O_{8+\delta}$: a global quantitative analysis

Superconductivity 2009-11-10 v2 Materials Science Strongly Correlated Electrons

Authors: R. H. He , D. L. Feng , H. Eisaki , J. -i. Shimoyama , K. Kishio , G. D. Gu

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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.

Keywords

superconductivity order parameter overdoped quasi-particle superfluid density

Cite

@article{arxiv.cond-mat/0402247,
  title  = {Superconducting order parameter in heavily overdoped $Bi_2 Sr_2 Ca Cu_2 O_{8+\delta}$: a global quantitative analysis},
  author = {R. H. He and D. L. Feng and H. Eisaki and J. -i. Shimoyama and K. Kishio and G. D. Gu},
  journal= {arXiv preprint arXiv:cond-mat/0402247},
  year   = {2009}
}

Comments

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

Superconducting order parameter in heavily overdoped $Bi_2 Sr_2 Ca Cu_2 O_{8+\delta}$: a global quantitative analysis

Abstract

Keywords

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