Andreev reflections from La2-xSrxCuO4 single crystals

Guy Deutscher, N. Achsaf, D. Goldschmidt, A. Revcolevschi, A. Vietkine

Research output: Contribution to journalArticlepeer-review

Abstract

We have measured the conductance of Point Contacts between LSCO single crystals and Gold tips. The initial increase of the conductance as a function of applied bias rules out the presence of nodes in the gap. The data is best fitted by an extended s-wave symmetry gap, with a ratio of about three between its extrema values.

Original languageEnglish
Pages (from-to)140-144
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume282-287
Issue numberPART 1
DOIs
StatePublished - Aug 1997

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