Quantum elasticity in Debye solids

被引：0
|
作者：
Giovanelli, R [1 ]
Orefice, A [1 ]
机构：
[1] Univ Milan, DI PRO VE, I-20133 Milan, Italy
来源：
SOLID STATE COMMUNICATIONS | 2005年 / 135卷 / 1-2期
关键词：
elasticity; quantum rigidity; recoilless process;
D O I：
10.1016/j.ssc.2005.03.049
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The rigid behaviour of a crystal lattice submitted to sudden and localized events (such as emission, absorption and scattering of quanta and/or light particles) is currently treated in terms of the well known Debye-Waller expression. Starting from first principles, and referring to solids described according to the Debye model, we present here a rigorous and general expression of the fraction of recoilless events, of which the Debye-Waller form is shown to represent only a first approximation, holding in the case of very low temperature solids. (c) 2005 Elsevier Ltd. All rights reserved.
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页码：82 / 86
页数：5
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