北京大学学报(自然科学版)

HgBa2CaCu2O6+δ的内层电子激发能的密度泛函理论研究

吕劲1,张爽2,章立源2,李俊2,张信威3,赵宪庚3   

  1. 1北京大学物理系介观物理实验室,北京,100871;北京应用物理与计算数学研究所计算物理实验室,北京,100088;2北京大学物理学系,北京,100871;3北京应用物理与计算数学研究所,北京,100088
  • 收稿日期:2000-06-06 出版日期:2001-05-20 发布日期:2001-05-20

Density Functional Theory Studies of the Core Excited Energies of HgBa2CaCu2O6+δ

LU Jin1, ZHANG Shuang2,ZHANG Liyuan2,LI Jun2, ZHANG Xinwei3, ZHAO Xiangeng3   

  1. 1Mesoscopic Physics Laboratory, Department of Physics, Peking University, Beijing, 100871; Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing, 100088; 2Department of Physics, Peking University, Beijing, 100871; 3Institute of Applied Physics and Computational Mathematics, Beijing, 100088
  • Received:2000-06-06 Online:2001-05-20 Published:2001-05-20

摘要: 运用相对论的自旋极化局域密度函数方法计算了HgBa2CaCu2O6+δ的电子结构。得到的内层电子激发能基本上与X光电子谱一致,其中自旋-轨道劈裂值与实验符合得尤其好。

关键词: 高温超导体, 电子结构, 自旋-轨道效应

Abstract: Relativistic spinpolarized local density functional calculations have been performed for HgBa2CaCu2O6+δ. The calculated core excited energies essentially agree with the XPS spectra. The spinorbit splittings are especially in satisfactory agreement with the observed ones.

Key words: high-Tc superconductors, electronic state, spin-orbit effects

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