Contribution of mobile twist disclinations to the specific heat of crystals

被引：1
作者：
Osipov, VA [1 ]
Churochkin, DV
机构：
[1] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Moscow Region, Russia
[2] Saratov State Univ, Dept Theoret & Nucl Phys, Saratov, Russia
来源：
PHYSICS LETTERS A | 2001年 / 282卷 / 1-2期
关键词：
D O I：
10.1016/S0375-9601(01)00160-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Contribution to the specific heat of crystals due to pinned twist disclinations is studied within the vibrating string model. For this purpose, a line tension and an effective mass of a sliding twist disclination is calculated. Both the line tension and the effective mass are found to vary along the disclination line as 22. On this basis, the model of heterogeneous string is formulated for the description of the vibrating pinned twist disclination. A solution to the equation of motion for heterogeneous string is obtained. The specific heat due to twist disclinations is found to be the Linear function of the temperature and the defect density. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码：92 / 96
页数：5
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