Temperature dependence of the magnetic penetration depth in the vortex state of the pyrochlore superconductor, Cd2Re2O7

M. D. Lumsden, S. R. Dunsiger, J. E. Sonier, R. I. Miller, R. F. Kiefl, R. Jin, J. He, D. Mandrus, S. T. Bramwell, J. S. Gardner

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Abstract

The recently discovered pyrochlore superconductor, Cd2Re2O7, was subjected to μSR studies of the superconducting state. Zero-field measurements indicate no significant magnetism in this superconductor, suggesting that magnetic frustration does not play a direct role in the superconductivity. Transeverse field measurements show that Cd2Re2O7 is a type-II superconductor with a fully gapped Fermi surface and a zero temperature penetration depth of ∼7500 Å.

Original languageEnglish
Article number147002
Pages (from-to)147002/1-147002/4
JournalPhysical Review Letters
Volume89
Issue number14
StatePublished - Sep 30 2002

Funding

We acknowledge valuable discussions with M. Yethiraj, as well as the technical support of the TRIUMF facility, in particular B. Hitti and M. Good. Oak Ridge National Laboratory is managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725. Work at Los Alamos National Laboratory was performed under the auspices of the U.S. Department of Energy.

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