Flux-front motion parallel to CuO2 planes in YBa2Cu3O7-δ observed with a scanning Hall probe

D. A. Brawner, Nai Phuan Ong, Z. Z. Wang

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The motion of the flux front in YBa2Cu3O7-δ with the field applied parallel to the layers is studied using a scanning Hall probe. By tracking the peak positions versus field in the remanence, we determine directly the critical current density perpendicular to the layers (Jc=8.3×104 A/cm2 at 4.2 K). The observed critical-current anisotropy (∼500) is much larger than indicated by high-temperature measurements. By scanning the flux profiles in the direction perpendicular to the layers, we find direct evidence that flux motion occurs parallel to the layers. A model that accounts for the observed mountain-pass topography in the remanence is presented.

Original languageEnglish (US)
Pages (from-to)13188-13191
Number of pages4
JournalPhysical Review B
Volume48
Issue number17
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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