THE EFFECTIVE PENETRATION DEPTH OF A HIGH-Tc SUPERCONDUCTOR YBa2Cu3O7

Chin. Phys. Lett.

1988, Vol. 5

Issue (8): 361-364 DOI:

Original Articles

THE EFFECTIVE PENETRATION DEPTH OF A HIGH-Tc SUPERCONDUCTOR YBa₂Cu₃O₇

PENG Jinlin*;YAN Shousheng;ZHANG Hang+;SUN Yunxi;LI Guozhong;ZHANG Wenbin;WEN Qingzhe

Department of Physics, Peking University, Beijing

Cite this article:

PENG Jinlin, YAN Shousheng, ZHANG Hang+ et al 1988 Chin. Phys. Lett. 5 361-364

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Abstract The dependence of the effective penetration depth λ_e, on the external magnetic field in a high-Tc superconducter YBa2Cu3O7 has been measured by both dc and ac methods at liquid-nigtrogen temperature. It is found, that λ_e increases rapidly with increasing external field and is 0.13~0.15mm in macroscopic scale. The Hcl of the specimen, about 800e at 77K here, can be determined more reliably by comparing dc λ_e with ac λ_e . The difference between λ_edc and λ_eac, and the jumping of λ_edc may indicate the characters of superconducting glass.

Keywords: 7430C

Published: 01 August 1988

PACS:

7430C

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1988/V5/I8/0361

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	PENG Jinlin
	YAN Shousheng
	ZHANG Hang+
	SUN Yunxi
	LI Guozhong
	ZHANG Wenbin
	WEN Qingzhe

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