An adapted strong coupling calculation in disordered solids yielding acoustic bistability

被引：1

作者：

Devaud, M

Boiteux, M

机构：

[1] CNRS,URA 0800,F-75700 PARIS,FRANCE

[2] UNIV PARIS 05,LAB PHYS BIOMED,F-75270 PARIS 06,FRANCE

来源：

PHYSICS LETTERS A | 1997年 / 231卷 / 5-6期

关键词：

glasses; TLS; phonons; bistability;

D O I：

10.1016/S0375-9601(97)00339-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider single well anharmonic oscillator like defects coupled to a perfect elastic medium, the coupling term being bilinear in the strain field and in the defect variables. The elastostatic self-interaction energy of the defects is negative and can turn efficiently the single well into a double well, giving a natural explanation for the existence of two level systems in glasses. (C) 1997 Elsevier Science B.V.

引用

页码：424 / 428

页数：5

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