Anomalous in-plane paraconductivity in single-crystal YBa2Cu3O7

S. J. Hagen, Z. Z. Wang, N. P. Ong

Research output: Contribution to journalArticle

84 Scopus citations

Abstract

We have studied the in-plane paraconductivity in single crystals of YBa2Cu3O7 with exceptionally sharp transitions. For temperatures greater than 1 K above the transition temperature Tc, we find good qualitative and some quantitative agreement with the two-dimensional Aslamazov-Larkin theory. The jump to zero resistance occurs in a narrow interval of less than 0.5 K. Our data are inconsistent with the Lawrence-Doniach expression for crossover from two to three dimensions.

Original languageEnglish (US)
Pages (from-to)7137-7140
Number of pages4
JournalPhysical Review B
Volume38
Issue number10
DOIs
StatePublished - Jan 1 1988

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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