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
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ZHOU Xingjiang, YAO Yushu, LI Jianqi. XU Wei et al  1993 Chin. Phys. Lett. 10 503-506
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Abstract Superconducting compound (Sr0.86Nd0.14) 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
JIA Shunlian
ZHAO Zhongxian
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