Flux pinning by twin planes in Nd-123 and Y-123 single crystals

Milos Jirsa, Michael R. Koblischka, Masato Murakami, Garry Perkins, David Caplin

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The pinning by twin planes and an isotropic pinning disorder was investigated on single crystals of NdBa2Cu3O7-} and YBa2Cu3O7-δ studying the angular dependence of total magnetic moment measured quasistatically by means of SQUID and dynamically by means of a vibrating sample magnetometer. The field dependence of the normalized relaxation rate of the vortex system pinned by twin planes, and by a random isotropic pinning disorder was determined. The qualitative difference of the two field profiles is clearly reflected by the shapes of the corresponding magnetic hysteresis loops. Material aspects of the pinning and the effect of the measurement method are discussed.

Original languageEnglish
Pages (from-to)851-852
Number of pages2
JournalPhysica B: Condensed Matter
Volume284-288
Issue numberPART I
DOIs
Publication statusPublished - 2000 Jan 1

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Keywords

  • Fishtail effect
  • Magnetization
  • NdBaCuO
  • RE-123 (RE = Rare Earth) family
  • Twin boundaries
  • Vortex pinning
  • YBaCuO

ASJC Scopus subject areas

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

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