Field Induced Reduction of the Low Temperature Superfluid Density in YBa2Cu3O6.95

Preprint

10 November 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9906452

Abstract

A novel high magnetic field (8 T) spectrometer for muon spin rotation has been used to measure the temperature dependence of the in-plane magnetic penetration depth in YBa2Cu3O6.95. At low H and low T, the penetration depth exhibits the characteristic linear T dependence associated with the energy gap of a d_x^2-y^2-wave superconductor. However, at higher fields the penetration depth is essentially temperature independent at low T. We discuss possible interpretations of this surprising new feature in the low-energy excitation spectrum.

Keywords

MEASURE THE TEMPERATURE
TEMPERATURE SUPERFLUID
SUPERFLUID DENSITY
INDUCED REDUCTION
PENETRATION DEPTH
SUPERCONDUCTOR
YBA2CU3O6.95

All Related Versions

Version 1, 1999-06-30, ArXiv
Version 2, 1999-11-10, ArXiv
Published version: Physical Review Letters, 83 (20), 4156.

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