Computer experiments on phonons and solitons in two-dimensional hexagonal crystals

被引：0

作者：

Itaba, M

Minato, A

Ozawa, S

Hiki, Y

机构：

[1] Tokyo Inst Technol, Fac Sci, Shibuya Ku, Tokyo 1510062, Japan

[2] Ibaraki Univ, Grad Sch Sci & Engn, Nakanarusawa, Hitach 3160033, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2002年 / 316卷

关键词：

molecular dynamics simulation; phonons; solitons; two-dimensional crystal; hexagonal crystal;

D O I：

10.1016/S0921-4526(02)00443-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A molecular dynamics computer simulation was carried out for two-dimensional anharmonic mass-spring model crystals. Instead of the square lattice crystals in our previous study, hexagonal lattice crystals were chosen. Interactions between the nearest neighbor and the next nearest neighbor atoms were taken into account. Mechanical excitations produced in the lattice by an input pulse displacement applied on the edge of the crystal were studied. Phonons and solitons were, respectively, produced when the input was small and not small. Our interest was focused on anticipating probable laboratory experiment of soliton production in real crystals. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：143 / 146

页数：4