Campbell penetration depth of a superconductor in the critical state

R. Prozorov, R. W. Giannetta, N. Kameda, T. Tamegai, J. A. Schlueter, P. Fournier

Research output: Contribution to journalArticlepeer-review


The magnetic penetration depth λ(T, H, j) was measured in the presence of a slowly relaxing supercurrent j. In single crystal Bi2Sr2CaCu2O8 below approximately 25 K, λ(T, H, j) is strongly hysteretic. We propose that the irreversibility arises from a shift of the vortex position within its pinning well as j changes. The Campbell length depends upon the ratio j/jc where jc is the critical current defined through the Labusch parameter. Similar effects were observed in other cuprates and in an organic superconductor.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number18
StatePublished - May 1 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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