Angular dependence of vortex states in Sr2RuO4

K. Yamazaki, M. Tokunaga, T. Tamegai, Zhiqiang Mao, Y. Maeno, S. Okayasu

Research output: Contribution to journalArticle

6 Scopus citations


We studied angular dependence of vortex states in Sr2RuO4 single crystals through magnetization measurements using micro-Hall probe. In a pristine sample, the width of magnetization hysteresis loop decreases strongly when the field is applied at large angle from the c-axis. Through angular dependence of the upper critical field, the in-plane anisotropy is estimated. In heavy-ion irradiated samples, the critical current density shows remarkable increase in a limited angle range, suggesting the presence of enhanced pinning due to introduction of columnar defects. In all samples, irreversible magnetization shows dip structures close to zero field. We discuss this dip structure in relation with the presence of time-reversal symmetry-breaking domains.

Original languageEnglish (US)
Pages (from-to)537-540
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue numberPART 1
StatePublished - Oct 1 2002

All Science Journal Classification (ASJC) codes

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

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    Yamazaki, K., Tokunaga, M., Tamegai, T., Mao, Z., Maeno, Y., & Okayasu, S. (2002). Angular dependence of vortex states in Sr2RuO4. Physica C: Superconductivity and its applications, 378-381(PART 1), 537-540.