SYMMETRY PROPERTIES OF FINITE FRENKEL-KONTOROVA CHAINS

被引：7

作者：

BRAIMAN, Y ^{[1
]}

BAUMGARTEN, J ^{[1
]}

KLAFTER, J ^{[1
]}

机构：

[1] ISRAEL INST BIOL RES,IL-70450 NESS ZIONA,ISRAEL

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.47.11159

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the symmetry properties of finite Frenkel-Kontorova chains with free-end boundary conditions. A symmetry-breaking transition is found as one varies eta, the relative strength of the harmonic and substrate interactions. This transition, from a symmetric configuration to a configuration with broken symmetry at eta = eta(c), is characterized by a gap in the phonon spectrum and by disorder and reflection-symmetry parameters, all of which display the scaling behavior (eta(c) - eta)0.5. The chains are shown to be pinned both below and above the symmetry-breaking transition.

引用

页码：11159 / 11166

页数：8

共 27 条

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