Search for spontaneous magnetization in Sr2RuO4

Tsuyoshi Tamegai, Kohei Yamazaki, Masashi Tokunaga, Zhiqiang Mao, Yoshiteru Maeno

Research output: Contribution to journalConference articlepeer-review

16 Scopus citations


A micro-Hall probe is used to search for spontaneous magnetic field at the edge of chiral domains in the time-reversal-symmetry-breaking state in Sr2RuO4. We did not detect any additional magnetic signal larger than 20 mG at low fields, which is much smaller than the theoretical estimate for an isolated chiral domain. This fact suggests that either the spontaneous magnetization is absent or the chiral domains are smaller than the size of Hall probe, 5 μm. In the latter case, magnetic history dependent measurements of the vortex pinning force strongly suggest that the chiral domains can be easily flipped by magnetic fields.

Original languageEnglish (US)
Pages (from-to)499-500
Number of pages2
JournalPhysica C: Superconductivity and its applications
StatePublished - May 2003
Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: Aug 20 2002Aug 27 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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