Anomalous Field Dependence of Magnetic Penetration Depth in the Vortex State of CeRu2 Probed by Muon Spin Rotation

A. Yamashita, K. Ishii, T. Yokoo, J. Akimitsu, M. Hedo, Y. Inada, Y. Ōnuki, E. Yamamoto, Y. Haga, R. Kadono

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Magnetic penetration depths in the mixed state of a heavy-fermion superconductor CeRu2 have been measured by muon spin rotation. An anomalous increase of the observed penetration depth associated with the hysteresis peak of magnetization strongly suggests a new vortex phase, possibly a generalized Fulde-Ferrel-Larkin-Ovchinnikov state, near the upper critical field.

Original languageEnglish
Pages (from-to)3771-3774
Number of pages4
JournalPhysical Review Letters
Issue number19
Publication statusPublished - Nov 10 1997
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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