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Chinese Journal of High Pressure Physics  > 2009  >  23(1): 31-36 .
LI Sheng-Ai, WANG Wei, LIU Su, WAN Xian-Gang. Properties of Sr8CaRe3Cu4O24 with Perovskite Structure under Pressure[J]. Chinese Journal of High Pressure Physics, 2009, 23(1): 31-36 . doi: 10.11858/gywlxb.2009.01.005
Citation: LI Sheng-Ai, WANG Wei, LIU Su, WAN Xian-Gang. Properties of Sr8CaRe3Cu4O24 with Perovskite Structure under Pressure[J]. Chinese Journal of High Pressure Physics, 2009, 23(1): 31-36 . doi: 10.11858/gywlxb.2009.01.005
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Properties of Sr8CaRe3Cu4O24 with Perovskite Structure under Pressure

doi: 10.11858/gywlxb.2009.01.005
  • 1.

    Department of Physics, Southeast University, Nanjing 211189, China;

  • 2.

    Department of Physics, Nanjing University, Nanjing 210093, China

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  • Corresponding author: WANG Wei
  • Received Date: 24 Dec 2007
  • Rev Recd Date: 02 Mar 2008
  • Issue Publish Date: 15 Feb 2009
    Abstract
  • We have investigated the mechanism and electromagnetic properties of new compound Sr8CaRe3Cu4O24 under the hydrostatic pressure by the mean of local spin density approximation and mean field theory. Then we have discussed the internal mechanisms of the high magnetic transition temperature (TC) and the regularity of TC with the variety of hydrostatic pressure of this compound. Our calculation shows that the value of the magnetic transition temperature increases and the width of gap around Fermi level in DOS of this material descreases with the increasing of pressure. Our results show that a simple Heisenberg model and the theory of orbital order is suitable for this compound.

     

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