Nonlocal effects and shrinkage of the vortex core radius in (formula presented) probed by muon spin rotation

K. Ohishi, K. Kakuta, Jun Akimitsu, W. Higemoto, R. Kadono, J. E. Sonier, A. N. Price, R. I. Miller, R. F. Kiefl, Minoru Nohara, H. Suzuki, H. Takagi

Research output: Contribution to journalArticle

Abstract

The magnetic field distribution in the vortex state of (formula presented) has been probed by muon spin rotation. The analysis based on the London model with nonlocal corrections shows that the vortex lattice has changed from hexagonal to square with increasing magnetic field H. At low fields the vortex core radius, (formula presented) decreases with increasing H much steeper than what is expected from the (formula presented) behavior of the Sommerfeld constant (formula presented) strongly suggesting that the anomaly in (formula presented) primarily arises from the quasiparticle excitations outside the vortex cores.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number14
DOIs
Publication statusPublished - Jan 1 2002
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Ohishi, K., Kakuta, K., Akimitsu, J., Higemoto, W., Kadono, R., Sonier, J. E., Price, A. N., Miller, R. I., Kiefl, R. F., Nohara, M., Suzuki, H., & Takagi, H. (2002). Nonlocal effects and shrinkage of the vortex core radius in (formula presented) probed by muon spin rotation. Physical Review B - Condensed Matter and Materials Physics, 65(14), 1-4. https://doi.org/10.1103/PhysRevB.65.140505