Microstructure and Superconductivity of Ultrathin YBa2Cu3O7-δ Films

Chin. Phys. Lett.

1995, Vol. 12

Issue (10): 625-628 DOI:

Original Articles

Microstructure and Superconductivity of Ultrathin YBa₂Cu₃O_7-δ Films

ZHENG Lizhen;SUN Jijun;ZHAO Bairu;XU Bo;LI Jinwei;YIN Bo, WU Fei;JIA Shunlian;LI Lin;ZHAO Zhongxian;ZHU Chuanfeng;BAI Chunli

National Laboratory for Superconductivity, Institute of Physics, Academia Sinica, Beijing 100080 Institute of Chemistry, Academia Sinica, Beijing 100080

Cite this article:

ZHENG Lizhen, SUN Jijun, ZHAO Bairu et al 1995 Chin. Phys. Lett. 12 625-628

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Abstract Two unit cells to 200Å thick ultrathin YBa₂Cu₃O_7-δ films have been synthesized and their growth mechanism and physical properties have been studied. Atomic force microscopy showed that the films grow with both spiral and layer by layer modes and the screw dislocations appeared even in the 6 unit cells thick films. In the initial growth stages of the films, the strong dependence of T_c on the film thickness is discussed.

Keywords: 74.76.Bz 74.62.-c 68.55.-a

Published: 01 October 1995

PACS:	74.76.Bz
	74.62.-c	(Transition temperature variations, phase diagrams)
	68.55.-a	(Thin film structure and morphology)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1995/V12/I10/0625

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	ZHENG Lizhen
	SUN Jijun
	ZHAO Bairu
	XU Bo
	LI Jinwei
	YIN Bo
	WU Fei
	JIA Shunlian
	LI Lin
	ZHAO Zhongxian
	ZHU Chuanfeng
	BAI Chunli

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