Dynamic softening of vortex lines in YBa2Cu3O7-δ single crystals

D. López, E. A. Jagla, E. F. Righi, E. Osquiguil, G. Nieva, E. Morré, F. De La Cruz, C. A. Balseiro

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Transport measurements in the mixed state of oxygen-deficient YBa2Cu3O7-δ single crystals using the flux transformer configuration show that the flux liquid changes with increasing anisotropy from strongly correlated to uncorrelated in the field direction. For intermediate coupling, the current inducing loss of vortex correlation has a maximum near the irreversibility temperature. Thus, an effective softening of vortex lines with decreasing temperature is detected. We propose a simple model that accounts for this behavior by including the effects of the pinning potential on the dynamics of vortices.

Original languageEnglish (US)
Pages (from-to)211-216
Number of pages6
JournalPhysica C: Superconductivity and its applications
Volume260
Issue number3-4
DOIs
StatePublished - Apr 10 1996

All Science Journal Classification (ASJC) codes

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

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