INSULATOR TO SUPERCONDUCTOR TRANSITION OF Pb DOPED 2201 SINGLE CRYSTAL IN Bi-SYSTEM BY OXYGEN DEFICIENCY

Chin. Phys. Lett.

1990, Vol. 7

Issue (11): 526-528 DOI:

Original Articles

INSULATOR TO SUPERCONDUCTOR TRANSITION OF Pb DOPED 2201 SINGLE CRYSTAL IN Bi-SYSTEM BY OXYGEN DEFICIENCY

LIU Yongqian;HUANG Yuzhen;CHEN Liquan;CHEN Hong;LI Jianqi, NI Yongming;JIA Shunlian;ZHAO Zhongxian

Institute of Physics, Academia Sinica, Beijing 100080

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LIU Yongqian, HUANG Yuzhen, CHEN Liquan et al 1990 Chin. Phys. Lett. 7 526-528

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Abstract Flux method was used to grow large 2201 single crystal in Bi-Sr-Cu oxide. The as-grown crystal was nonsuperconductor and showed semiconductivity in resistivity curve. After it was reduced in flowing N₂ at 570°C and appropriate oxygen vacancies were induced, superconductivity with T^on_c=6K was obtained. The great influence of oxygen deficience on superconductivity is evident. Also, the incorporation of Pb adjusted the modulation pattern.

Keywords: 74.70.Sw 74.65.+n

Published: 01 November 1990

PACS:	74.70.Sw
	74.65.+n

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1990/V7/I11/0526

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	LIU Yongqian
	HUANG Yuzhen
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	NI Yongming
	JIA Shunlian
	ZHAO Zhongxian

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