Investigation of Hole Distribution in Y1-x Prx Ba2 Cu3 O7
YU Ya-bin1,2 , CAO Guang-han1 , JIAO Zheng-kuan1
1 Department of Physics, Zhejiang University, Hangzhou 310027
2 Department of Physics, Yantai University, Yantai 264005
Investigation of Hole Distribution in Y1-x Prx Ba2 Cu3 O7
YU Ya-bin1,2 ;CAO Guang-han1 ;JIAO Zheng-kuan1
1 Department of Physics, Zhejiang University, Hangzhou 310027
2 Department of Physics, Yantai University, Yantai 264005
关键词 ：
74.20.Mn ,
74.25.Jb ,
74.72.Bk
Abstract ： The electronic structure of Y1-x Prx Ba2 Cu3 O7 is described by a tight-binding Hamiltonian in which the Pr-O hybridization and the 2pσ - 2pπ Coulomb repulsion are taken into account. The dependence of planar hole-density, localized hole-density and chemical potential of holes on Pr concentration is calculated by a coherent potential approximation. The result shows that the insensitivity of hole-density on the CuO3 chains with the Pr-doping is due to the 2pσ - 2pπ repulsion. Some other experimental facts can also be well interpreted.
Key words ：
74.20.Mn
74.25.Jb
74.72.Bk
出版日期: 1998-07-01
引用本文:
YU Ya-bin;CAO Guang-han;JIAO Zheng-kuan. Investigation of Hole Distribution in Y1-x Prx Ba2 Cu3 O7 [J]. 中国物理快报, 1998, 15(7): 525-527.
1-x Prx Ba2 Cu3 O7 . Chin. Phys. Lett., 1998, 15(7): 525-527.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1998/V15/I7/525
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