Dependence of Tc on the q and w structure of the spin-fluctuation spectrum of YBCO6.6

ORAL

Abstract

A phenomenological spin-fuctuation analysis , based upon inelastic neutron scattering (INS) and angular resolved spectroscopy (ARPES) data for YBCO6.6(Tc =61K), is used to calculate the functional derivative of the d-wave eigenvalue of the linearized gap equation with respect to chi"(q,w)) at 70K. For temperatures near Tc, the variation of Tc with respect to chi"(q,w) is proportional to this functional derivative. Based on this, we discuss how different parts of the q and w spin-fuctuation spectrum of YBCO6.6 contribute to Tc.

*D.J.S. acknowleges support from the (SciDAC) program funded by U.S. Department of Energy, Office of Science, Advanced Scientific Computing Research and Basic Energy Sciences, Division of Materials Sciences and Engineering.

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Presenters

  • Douglas Scalapino

    • physics, Univ of California - Santa Barbara
    • Physics, UCSB
    • University of California, Santa Barbara

Authors

  • Douglas Scalapino

    • physics, Univ of California - Santa Barbara
    • Physics, UCSB
    • University of California, Santa Barbara

  • Thomas Dahm

    • Physics, Universitat Bielefeld, Fakultat fur Physik,