Anomalous field dependence of the vortex-core radius and magnetic penetration depth in YNi2B2C probed by μSR

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

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)


Muon spin rotation measurements were performed to deduce the magnetic penetration depth λ and vortex core radius ρv in the mixed state of YNi2B2C for Hc1≪H≥0.7 Hc2. A preliminary analysis based on the modified London model shows that ρv decreases steeply with increasing H, while λ increases linearly in H. Results also shows that the vortex core radius ρv shrinks with increasing field and subsequently levels off at higher fields. These indicate the need to reconsider the conventional rigid normal electron core picture by taking account of vortex-vortex interaction mediated by delocalized quasi particles.

Original languageEnglish
Pages (from-to)377-380
Number of pages4
JournalPhysica B: Condensed Matter
Publication statusPublished - Aug 2000
Externally publishedYes
Event8th International Conference on Muon Spin Rotation, Relaxation and Resonance (muSR'99) - Les Diablerets, Switz
Duration: Aug 30 1999Sep 3 1999

ASJC Scopus subject areas

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


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