Influence of moving breathers on vacancies migration

被引：34

作者：

Cuevas, J

Katerji, C

Archilla, JFR

Eilbeck, JC

Russell, FM

机构：

[1] Univ Sevilla, Grp Fis No Lineal, Dept Fis Aplicada 1, ETSI Informat, Seville 41012, Spain

[2] Heriot Watt Univ, Dept Math, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

PHYSICS LETTERS A | 2003年 / 315卷 / 05期

关键词：

discrete breathers; mobile breathers; intrinsic localized modes; defects;

D O I：

10.1016/S0375-9601(03)01097-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A vacancy defect is described by a Frenkel-Kontorova model with a discommensuration. This vacancy can migrate when interacts with a moving breather. We establish that the width of the interaction potential must be larger than a threshold value in order that the vacancy can move for-ward. This value is related to the existence of a breather centred at the particles adjacent to the vacancy. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：364 / 371

页数：8

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