Vortex dynamics below the flux-lattice melting transition in YBa2Cu3O7-

H. Safar, P. L. Gammel, D. A. Huse, G. B. Alers, D. J. Bishop, W. C. Lee, J. Giapintzakis, D. M. Ginsberg

Research output: Contribution to journalShort surveypeer-review

77 Scopus citations


We report measurements of the critical current, differential resistance, and voltage noise below the vortex-lattice melting transition in clean, untwinned YBa2Cu3O7- crystals. The differential resistance at dc current bias much greater than Jc shows a sharp feature at the melting transition accompanied by a rapid drop in the voltage noise, demonstrating that the melting transition is insensitive to the static pinning potential. In the solid phase, the measurements all show a marked change from the low-field, pinned lattice to the high-field vortex-glass contiguous with the tricritical point in this sample.

Original languageEnglish (US)
Pages (from-to)6211-6214
Number of pages4
JournalPhysical Review B
Issue number9
StatePublished - 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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