Image of the Energy Gap Anisotropy in the Vibrational Spectum of a High Temperature Superconductor

Preprint

21 April 1992

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9204008

Abstract

We present a new method of determining the anisotropy of the gap function in layered high-Tc superconductors. Careful inelastic neutron scattering measurements at low temperature of the phonon dispersion curves in the (100) direction in La_(1.85)Sr_(.15)CuO_4 would determine whether the gap is predominately s-wave or d-wave. We also propose an experiment to determine the gap at each point on a quasi-two-dimensional Fermi surface.

Keywords

VIBRATIONAL SPECTUM
DETERMINE THE GAP
SUPERCONDUCTORS
GAP ANISOTROPY
SCATTERING
ENERGY GAP
PHONON

All Related Versions

Version 1, 1992-04-21, ArXiv
Published version: Physical Review Letters, 70 (5), 658.

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