DTIC ADA190713: Magnetic Anomalies in the Rare pdf

DTIC ADA190713: Magnetic Anomalies in the Rare

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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

• Creator/s: Defense Technical Information Center
• Date: 1/9/1988
• Year: 1988
• Book Topics/Themes: DTIC Archive, Hatfield, William E, NORTH CAROLINA UNIV AT CHAPEL HILL DEPT OF CHEMISTRY, *BARIUM, *CERAMIC MATERIALS, *MAGNETIC PROPERTIES, *OXIDES, *SUPERCONDUCTIVITY, *YTTRIUM, COOLING, COPPER, DEPTH, GLASS, LOOPS, MAGNETIC ANOMALIES, MAGNETIC FIELDS, METASTABLE STATE, PENETRATION, SPINNING(MOTION), TEMPERATURE

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