Quasiparticle tunneling properties of YBa2Cu3O7-x bicrystals grown by liquid phase epitaxy

Yu Eltsev, K. Nakao, Y. Yamada, I. Hirabayshi, N. Koshizuka, Masato Murakami

Research output: Contribution to journalArticle

Abstract

Transport properties and tunneling characteristics of 45° asymmetric grain boundary junctions, fabricated in YBa2Cu3O7-δ films grown by liquid phase epitaxy, have been studied. For selected samples, with very low zero field critical current density, a conductance peak in the dI/dV vs V curves has been observed below Tc. The position and amplitude of this peak depend on the magnetic field and temperature, indicating its superconducting origin. Strong oxygen doping effect on the gap energy was also found.

Original languageEnglish
Pages (from-to)1306-1309
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume378-381
Issue numberPART 2
DOIs
Publication statusPublished - 2002 Oct
Externally publishedYes

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Keywords

  • Anisotropy
  • MgB
  • Single crystal
  • Upper critical field

ASJC Scopus subject areas

  • Condensed Matter Physics

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