Local correlations and deviations of energy scales from SI-STM in Bi-2212

ORAL

Abstract

One of the key difficulties in understanding the cuprate superconductors is reconciling the many probes that have been used to investigate them. In particular, in one of the most studied materials BSCCO-2212, this comparison is complicated by the striking atomic scale inhomogeneity that is seen in the electronic structure. We will present spectroscopic imaging scanning tunneling microscopy studies which show that the dominate energy scales are tied together not only as a function of doping but locally. This implies a single parameter that allows much of the low energy structure to be predicted. In addition, local structures which cause deviations in the ability of this single parameter to fit the data correspond to other phenomena previously described.

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Authors

  • Kyle McElroy

    University of Colorado Boulder

  • Jacob Alldredge

    University of Colorado Boulder, NIST

  • Kazuhiro Fujita

    Cornell, Cornell University; Brookhaven National Lab, Cornell University

  • Genda Gu

    Brookhaven National Laboratory, Brookhaven National Lab, CMP\&MS, Brookhaven National Laboratory, CMP\&MS Department, Brookhaven National Laboratory, Brookhaven National Laboratory, Upton, NY, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA

  • Hiroshi Eisaki

    AIST, National Institute of Advanced Industrial Science and Technology, Japan, Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan, National Institute of Advanced Industrial and Science Technology, Institute of Advanced Industrial Science and Technology, Nanoelectronics Research Institute, National Institute of Advanced Industrial Science and technology

  • Shin-ichi Uchida

    Tokyo University, University of Tokyo, Japan, University of Tokyo, Department of Physics, University of Tokyo