Green's-function approach to quantum confinement

被引：11
|
作者：
Mizel, A [1 ]
Cohen, ML
机构：
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW B | 1998年 / 57卷 / 16期
关键词：
D O I：
10.1103/PhysRevB.57.9515
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a rigorous means of computing the electronic properties of a confined system by perturbing the electronic properties of an unconfined, bulk system. Our approach focuses on the Green's function of the confined system. We explain why it is preferable to consider the confined Green's function rather than the confined energy eigenfunctions, and an expression for the change in the Green's function produced by quantum confinement is derived. Finally, we shift our focus to the eigenfunctions and derive approximate results for a spherical nanocrystal with a Green's function methodology. [S0163-1829(98)01515-X].
引用
收藏
页码：9515 / 9520
页数：6
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