Lattice expansion of nanoscale compound particles

被引：66

作者：

Fukuhara, M ^{[1
]}

机构：

[1] Ctr Technol, Yokohama, Kanagawa 2300027, Japan

来源：

PHYSICS LETTERS A | 2003年 / 313卷 / 5-6期

关键词：

lattice expansion; electron screening; nonoscale compound particles;

D O I：

10.1016/S0375-9601(03)00793-X

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The lattice expansion of unit cell in three kinds of nanoscale compound particles, MgO, alpha-Fe2O3 and TiC was calculated as a function of particle size, by means of the Thomas-Fermi statistical method. The calculated curves agree surprisingly well with experimental data. Both curves increase parabolic as the particle size decreases. Hence we can visualize a physical picture of neutralization of screened effect coming from decrease in binding electron ratio for nanoscale compound particles. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：427 / 430

页数：4

共 24 条

[1] THOMAS-FERMI APPROXIMATION FOR THE VALENCE ELECTRON-DENSITIES IN CUBIC SEMICONDUCTORS AND INSULATORS [J].