Flux flop in Y-Ba-Cu-O crystals irradiated with 5.3-GeV Pb ions

L. Klein, E. R. Yacoby, Y. Wolfus, Y. Yeshurun, L. Burlachkov, B. Ya Shapiro, M. Konczykowski, F. Holtzberg

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Y-Ba-Cu-O crystals were irradiated with 5.3-GeV Pb ions. The induced columnar defects are either perpendicular or at 45°to the Cu-O planes. Magnetization curves confirm an anisotropic, unidirectional enhancement of the critical current Jc. However, a sharp crossover to isotropic enhancement is observed in the low-field limit. We interpret these results in terms of flux flop from a direction determined by the field to the direction of the defect. From this feature we determine the pinning energy of a flux line in a columnar defect.

Original languageEnglish
Pages (from-to)12349-12352
Number of pages4
JournalPhysical Review B
Issue number18
StatePublished - 1993


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