Characteristics of flux pinning in (formula presented) superlattices

H. C. Yang, L. M. Wang

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The resistivity of (Formula presented) (Formula presented) superlattices under magnetic fields was measured to investigate the flux pinning and anisotropic superconducting properties, where n is the number of the modulation layer. The fields applied were parallel to the ab plane and the c axis of the films. The resistivity under magnetic fields shows thermally activated behavior. A power law magnetic field dependence of (Formula presented) in YBCO/PBCO superlattices was observed. The (Formula presented) was observed to scale to a constant which increases linearly when the thickness of YBCO layers is increased and decreases linearly when the thickness of PBCO layers is increased. There exists both one-unit-cell YBCO and interlayer YBCO couplings in YBCO/PBCO superlattices. These couplings affect the coherence lengths.

Original languageEnglish
Pages (from-to)8956-8961
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number13
DOIs
Publication statusPublished - 1999 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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