EFFECT OF DIELECTRIC SCREENING ON THE DONOR STATES IN A QUANTUM-WELL WIRE

被引：20

作者：

SUKUMAR, B

NAVENEETHAKRISHNAN, K

机构：

[1] School of Physics, Madurai Kamaraj University, Madurai

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 74卷 / 04期

关键词：

D O I：

10.1016/0038-1098(90)90189-I

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Ionization energies of a donor in a GaAs/Ga1-xAlxAs quantum well wire have been obtained using two different dielectric functions in the potential energy term within the effective-mass approximation. The results show that the choice of the dielectric function is important, especially for small well widths. The contribution from the dielectric screening, while negligible for larger well widths, contributes about 5 meV for small well widths. © 1990.

引用

页码：295 / 297

页数：3

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