Quantum dimensional effect in powders of
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V. Fleisher; E. Lähderanta; R. Laiho; Yu.P. Stepanov
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Article
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1990
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Elsevier Science
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English
⚖ 338 KB
Low-field magnetization has been investigated in powders of YBa2Cu3OT\_~ using ~amples with different maximal characteristic particle sizes dm~ of between 2.4 and 7.4 ~m. Measurements of the thermoremanent magnetization reveal the existence of a threshold field H~ corresponding to trapping of a sing