In-plane anisotropy of the resistivity in 60 K YBCO single crystal under magnetic field

Tomoyuki Naito, Seiya Haraguchi, Tadashi Suzuki, Hideo Iwasaki, Takahiko Sasaki, Terukazu Nishizaki, Kenji Shibata, Norio Kobayashi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The in-plane anisotropy of the resistivity ρab(θ) has been measured on a twinned 60 K YBa2Cu3O7-δ (YBCO) single crystal under magnetic fields H precisely parallel to the CuO2 planes. ρab(θ) curves are described by the superposition of the twofold and fourfold symmetry, and the dip structure appears at θ = 0° and 90°. The fourfold anisotropy is first observed in YBCO system in the resistivity measurements. We show that the obtained results are explained by the superconducting fluctuation, the symmetry of the superconducting energy gap of the d-wave pairing and the effect of the vortex pinning.

Original languageEnglish
Pages (from-to)310-313
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume362
Issue number1-4
DOIs
Publication statusPublished - 2001 Sep

Keywords

  • 60 K YBCO single crystal
  • In-plane anisotropy
  • Resistivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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