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Chinese Journal of High Pressure Physics  > 2006  >  20(4): 415-420 .
WU Yun-Long, SONG Chun-Mei, XIONG Yu-Feng, LI Lai-Feng. Structure Evolution and Transport Properties of La2-xSmxCuO4 at High Pressure[J]. Chinese Journal of High Pressure Physics, 2006, 20(4): 415-420 . doi: 10.11858/gywlxb.2006.04.013
Citation: WU Yun-Long, SONG Chun-Mei, XIONG Yu-Feng, LI Lai-Feng. Structure Evolution and Transport Properties of La2-xSmxCuO4 at High Pressure[J]. Chinese Journal of High Pressure Physics, 2006, 20(4): 415-420 . doi: 10.11858/gywlxb.2006.04.013
shu

Structure Evolution and Transport Properties of La2-xSmxCuO4 at High Pressure

doi: 10.11858/gywlxb.2006.04.013
  • 1.

    Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China;

  • 2.

    Graduate School of Chinese Academy of Sciences, Beijing 100039, China;

  • 3.

    Department of Physics, Zunyi Normal College, Zunyi 563002, China;

  • 4.

    National Center for Nanoscience and Technology, Beijing 100080, China

More Information
  • Corresponding author: WU Yun-Long
  • Received Date: 18 Oct 2005
  • Rev Recd Date: 01 Jan 2006
  • Publish Date: 05 Dec 2006
    Abstract
  • The structure evolution and transport properties of La2-xSmxCuO4 synthesized both at atmosphere pressure and high pressure have been studied. The crystal structure changed from T phase to the T phase. Following treatment in high pressure of 6 GPa in 850 ℃, a slight modification in the lattice constants was observed. The results also showed that oxygen pressure tended to stabilize the T structure. The pressure caused the sample density increasing. The high oxygen pressure treatment for the T structure resulted in a drastic decrease of the resistivity at low temperature, indicating a superconductivity with Sm concentration0.5.

     

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