Binding Energy of a Screened Hydrogenic Impurity in a Quasi One-Dimensional Electron Gas
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概要
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We report the calculation of the binding energy E. of a screened hydrogen impurityplaced at center of quantum well wire with a square cross-section of the length L,which is surrounded by an infinite barrier. The random-phase-approximation staticdielectric function at zero temperature and electric quantum limit are adopted. Forthe case that L is comparable to ex. (a. is the effective Bohr radius of hydrogenic im-purity in bulk), it is shown that E3 is minimum near a.k.=0.5 (A'. is the Fermi wavenumber) and the screening effect of mobile carriers on E. is neglected for the casea.k.>>l .
- 社団法人日本物理学会の論文
- 1986-11-15
著者
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Osaka Yukio
Department Of Electrical Engineering Faculty Of Engineering Hiroshima University
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Kodama Takeshi
Department Of Chemistry Tokyo Metropolitan University
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Kodama T
Hiroshima Univ. Medical School Hiroshima Jpn
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Kodama Takeshi
Department Of Applied Physics Waseda University
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