Session W11: Theory of Superconductivity in Cuprates II

2:30 PM–5:18 PM, Thursday, March 13, 2008
Morial Convention Center - RO9

Sponsoring Unit: DCMP
Chair: Mohit Randeria, Ohio State University

Abstract ID: BAPS.2008.MAR.W11.3

Abstract: W11.00003 : Phase Fluctuations in high-Tc Superconductors

2:54 PM–3:06 PM

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Authors:

  Yucel Yildirim
    (Brookhaven National Laboratory )

  Weiguo Yin
    (Brookhaven National Laboratory )

  Wei Ku
    (Brookhaven National Laboratory )

Thermal fluctuation induced destruction of phase coherence of superconductivity in High-Tc superconductors is investigated via numerical quantum Monte Carlo solution of a new theoretical model at finite-temperature. Our simple effective boson Hamiltonian, derived from the pairing sector of the t'-t''-J model, can be considered as a natural extension of the hard-core boson with additional information about the internal structure of the local fermion pairs. The local solution is found to consist of d-wave pairing, hybridizing with neighboring p-wave pairs. The possible connection with the pseudo-gap phase will also be addressed.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2008.MAR.W11.3