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Chinese Journal of High Pressure Physics  > 1994  >  8(1): 1-8 .
HAO Xue-Jun, ZHANG Li-Yuan, WANG Huai-Yu. Effect of High Pressure on Electronic Structure of Super conducting La1.85Sr0.15CuO4[J]. Chinese Journal of High Pressure Physics, 1994, 8(1): 1-8 . doi: 10.11858/gywlxb.1994.01.001
Citation: HAO Xue-Jun, ZHANG Li-Yuan, WANG Huai-Yu. Effect of High Pressure on Electronic Structure of Super conducting La1.85Sr0.15CuO4[J]. Chinese Journal of High Pressure Physics, 1994, 8(1): 1-8 . doi: 10.11858/gywlxb.1994.01.001
shu

Effect of High Pressure on Electronic Structure of Super conducting La1.85Sr0.15CuO4

doi: 10.11858/gywlxb.1994.01.001
  • 1.

    Department of Physics, Peking University, Beijing 100871, China;

  • 2.

    Department of Physics, Yantai University, Yantai 264005, China

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  • Corresponding author: HAO Xue-Jun
  • Received Date: 26 Aug 1993
  • Rev Recd Date: 26 Aug 1993
  • Publish Date: 05 Mar 1994
    Abstract
  • The electronic structure of La1.85Sr0.15CuO4 under atmosphere, 1 GPa, 4 GPa, 8 GPa has been calculated by the Recursion method. The changes of Fermi energy, total density dstates at EF, atomic valence at each site are given. Our results show that the change of Tc under high pressure is not due to the change of EF or N(EF), but may be caused by the variation of hole number of Cu and O2 on the CuO2 plane. The rise Of O2 p holes is favorable for superconductivity in this system.

     

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