Phase Transformation in the Infinite Layer Structure Compound
(Sr, Nd) CuO<suB>2</suB> and its Effect on Superconductivity

Chin. Phys. Lett.

1993, Vol. 10

Issue (8): 503-506 DOI:

Original Articles

Phase Transformation in the Infinite Layer Structure Compound (Sr, Nd) CuO₂ and its Effect on Superconductivity

ZHOU Xingjiang;YAO Yushu;LI Jianqi. XU Wei;JIA Shunlian;ZHAO Zhongxian

National Laboratory for Superconductivity, Institute of physics, Academia Sinica, Beijing 100080

Cite this article:

ZHOU Xingjiang, YAO Yushu, LI Jianqi. XU Wei et al 1993 Chin. Phys. Lett. 10 503-506

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Abstract Superconducting compound (Sr_0.86Nd_0.14) CuO₂ with the infinite layer structure was synthesized under high pressure. This tetragonal structure a x a transforms into a superstructure 2√2a x 2√2a when the sample was in situ heated in transmission electron microscope to about 600K. An anormalous resistance change of the sample during heating in vacuum to 400°C confirmed the phase transformation. After the superlattice formation, the sample lost its superconductivity and became semiconducting.

Keywords: 74.70.Jm 74.70.Vy 81.30.Hd 61.16.-d

Published: 01 August 1993

PACS:	74.70.Jm
	74.70.Vy
	81.30.Hd	(Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder)
	61.16.-d

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1993/V10/I8/0503

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	ZHOU Xingjiang
	YAO Yushu
	LI Jianqi. XU Wei
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	ZHAO Zhongxian

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