New Resistance Anomaly in Superconducting Bi2Sr2CaCu2O8 Single Crystals

Chin. Phys. Lett.

2000, Vol. 17

Issue (12): 907-908 DOI:

Original Articles

New Resistance Anomaly in Superconducting Bi₂Sr₂CaCu₂O₈ Single Crystals

WANG Wen-Hu;ZHOU Yu-Qin;CHEN Zhao-Jia;ZHENG Ping;JIN Duo;WANG Yu-Peng

Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, P.O.Box 2711, Beijing 100080

Cite this article:

WANG Wen-Hu, ZHOU Yu-Qin, CHEN Zhao-Jia et al 2000 Chin. Phys. Lett. 17 907-908

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Abstract We have measured the resistance of some Bi₂Sr₂CaCu₂O₈ superconducting single crystals along ab plane and the c axis. For some of the single crystals, a resistivity anomaly near the superconducting transition temperature is observed in the ab plane. This giant resistance peak is independent of the small driving current (I ≤40 mA), and the peak is suppressed and vanished gradually with the increasing applied magnetic field (> 100 G). We proposed that the resistance peak is a quasi-reentrant behavior due to the superconducting phase inhomogeneous distribution.

Keywords: 74.25.Fy 74.72.Hs 74.72.-h

Published: 01 December 2000

PACS:	74.25.Fy
	74.72.Hs
	74.72.-h	(Cuprate superconductors)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2000/V17/I12/0907

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	WANG Wen-Hu
	ZHOU Yu-Qin
	CHEN Zhao-Jia
	ZHENG Ping
	JIN Duo
	WANG Yu-Peng

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