COMPUTER-SIMULATION OF INTRINSIC LOCALIZED MODES IN ONE-DIMENSIONAL AND 2-DIMENSIONAL ANHARMONIC LATTICES

被引：147
作者：
BURLAKOV, VM
KISELEV, SA
PYRKOV, VN
机构：
[1] Institute of Spectroscopy, Academy of Sciences, Union of Soviet Socialist Republics, Troitzk
来源：
PHYSICAL REVIEW B | 1990年 / 42卷 / 08期
关键词：
D O I：
10.1103/PhysRevB.42.4921
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The properties of stable and movable intrinsic localized vibrations (ILVs) have been investigated by the particle method. It is shown primarily with the help of computer experiments that an ILV in an anharmonic lattice is identical to a localized vibration near a force-constant defect in a harmonic lattice. The temperature dependence of the localization threshold is presented. The differences between ILVs and solitons are discussed. A brief study is also made on the existence of ILV in a two-dimensional square lattice. © 1990 The American Physical Society.
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页码：4921 / 4927
页数：7
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