ELECTRON-HOPPING AND HOLE-HOPPING AMPLITUDES IN A DIATOMIC MOLECULE

被引：54
|
作者：
HIRSCH, JE
机构：
[1] Department of Physics, University of California, San Diego
来源：
PHYSICAL REVIEW B | 1993年 / 48卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.48.3327
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We calculate the hopping amplitudes for an electron and for a hole added to the molecule H-2. We use a linear combination of atomic orbitals approach and the Hartree approximation. The hopping amplitudes for electrons and boles are found to be different, reflecting the fundamental electron-hole asymmetry of condensed matter. The physical origin of this result is discussed. We study the dependence of hopping amplitudes on internuclear distance and on the nuclear charge Z (Z = 1 for H-2) and discuss the possible implication of our results to the understanding of superconductivity in solids.
引用
收藏
页码：3327 / 3339
页数：13
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