Magnetic Anomalies in the Rare Earth Oxide Superconductors GdBa2Cu3O(7-x) and YbBa2Cu3O(7-x).

Abstract

The magnetic properties of GdBa2Cu3O(7-X) and YBa2Cu3O(7-X) have been studied in low applied magnetic field by using pelleted sample. The magnetic behavior may be explained by the occurrence of a spin-glass state due to a granular superconductor. The model assumes superconducting grains which are small compared to the penetration depth, and these are coupled into closed loops. Cooling in zero-field, followed by the application of a field at a fixed temperature produces a metastable state resulting in frustration and spin-glass behavior. Keywords: Superconductivity, Yttrium, Barium, Copper, Ceramic oxide, Perovskite, Gadlinium, Meissner effects, Spin glass.

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Document Details

Document Type
Technical Report
Publication Date
Jan 09, 1988
Accession Number
ADA190713

Entities

People

  • Brian R. Rohrs
  • Hyekyeong Ro
  • Jeffrey H. Helms
  • Martin L. Kirk
  • William E. Hatfield

Organizations

  • University of North Carolina at Chapel Hill

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • California
  • Chemistry
  • Frustration
  • Magnetic Anomalies
  • Magnetic Fields
  • Magnetic Phenomena
  • Magnetic Properties
  • Materials
  • Metastable State
  • Military Research
  • New York
  • North Carolina
  • Shielding
  • Superconductivity
  • United States
  • Universities

Fields of Study

  • Physics

Readers

  • Superconducting Magnet Technology