MODEL DIELECTRIC FUNCTION FOR SEMICONDUCTORS

被引：52

作者：

GRIMES, RD ^{[1
]}

COWLEY, ER ^{[1
]}

机构：

[1] BROCK UNIV, DEPT PHYS, ST CATHARINES, ONTARIO, CANADA

来源：

CANADIAN JOURNAL OF PHYSICS | 1975年 / 53卷 / 23期

关键词：

D O I：

10.1139/p75-311

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The microscopic dielectric function is calculated for a simple model of a semiconductor, in which the energy bands and wave functions are those of a one-dimensional, nearly free electron system, isotropically extended to three dimensions. The dielectric function is evaluated numerically so that all unnecessary approximations are avoided. A relationship between the static dielectric constant and the energy gap is found. The results for finite wave vectors, for a range of energy gaps, have been fitted to an interpolation formula to facilitate their use.

引用

页码：2549 / 2554

页数：6

共 6 条

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