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AC magnetic susceptibility measurements near the superconducting transition temperature of YBCO sintered samples

✍ Scribed by M. Polichetti; S. Pace; A. Saggese; A.M. Testa; C. Federico; F. Celani; M. Boutet; D. Di Gioacchino

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 150 KB
Volume: 235-240
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(94)91135-5

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✦ Synopsis

The temperature dependence of the ac susceptibility of sintered YBCO pellets is experimentally analysed in detail few Kelvin below the transition temperature. The quite complex dependence of X' and ~" on the frequency and the amplitude of the ac magnetic field cannot be explained by an ohmic Flux Flow or Critical State models, so that intermediate regimes or different non linear phenomena are to be considered.

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