MAGNETIC PROPERTIES OF THE HIGH Tc SUPERCONDUCTORS BiSrCaCuO AND TlBaCaCuO

Y D Dai, Chashin Lin, W B Zhang,S Q Feng, Xiaorong Zhu,C D Wei,Z X Liu,Y X Sun, Ju Lan, G Z Li, Kuanyi Wu, K X Chen,D L Yin,Z Z Gan, Y F Zhang,W J Zhu, B X Lin

International Journal of Modern Physics B（2012）

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摘要

Magnetic properties of the high Tc superconductors BiSrCaCuO and TlBaCaCuO were investigated systematically. Magnetic current densities were calculated from magnetic hysteresis loops of bulk and powdered samples by Bean model. The results showed that flux pinning in these materials is much weaker than that in YBaCuO.

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关键词

flux pinning,current density,magnetic properties,magnetic hysteresis

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