Angular dependence of the in-plane energy gap by tunneling spectroscopy

Jeffrey Kane, K. Ng

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

A technique for tunneling into the a-b plane of the layered cuprate superconductors is described and applied to study the in-plane gap anisotropy of the high-(Formula presented) superconductor (Formula presented)(Formula presented)(Formula presented)(Formula presented). The results show unambiguously that the in-plane energy gap is highly anisotropic with a gap minimum along the Cu-(Formula presented) bond direction. Using these results, we present an angular mapping of the in-plane gap anisotropy and compare our results to those from other experiments. Effects of the gap anisotropy on the tunneling spectra will also be discussed.

Original languageEnglish
Pages (from-to)2819-2826
Number of pages8
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume53
Issue number5
DOIs
StatePublished - 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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