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MAGNETIZATION MEASUREMENTS OF HIGH Tc SUPERCONDUCTING Ba-Y-Cu-O SYSTEM |
| SHI Yinhuan;ZHAO Bairu;WANG Huisheng;LU Yong;ZHAO Yuying;XU Po;LI Lin
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| Institute of Physics, Academia Sinica, Beijing |
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| Cite this article: |
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SHI Yinhuan, ZHAO Bairu, WANG Huisheng et al 1987 Chin. Phys. Lett. 4 485-488 |
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Abstract The magnetization M(T) at a fixed field, the magnetization M(H) at different temperatures of the Ba-Y-Cu-O samples with zero resistance at 91.5K have been measured. The results show that Ba-Y-Cu-O is a type-II superconductor. We also present the anomaly of M(T) at low temperature. At T approaching OK, M(H) changes from negative to positive. The relationship between the area of magnetic hysteresis loop and the critical current density is discussed.
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Published: 01 November 1987
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