Computer simulation of vibration spectrum in disordered systems

被引：0
|
作者：
Shen, ZC [1 ]
机构：
[1] SUZHOU PROFESS UNIV,SUZHOU 215002,PEOPLES R CHINA
来源：
JOURNAL DE PHYSIQUE IV | 1996年 / 6卷 / C8期
关键词：
D O I：
10.1051/jp4:19968146
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The disordered systems are of fractal structures. Alexander and Orbach showed that the vibrational density of states for fractal nets follow. the universal law:D(omega) similar to omega(2-:) where d is the spectral (fracton) dimensionality;d=4/3 for any Euclidean dimension d. The excitations belonging to this class were named ''fractons''. We have employed a novel numerical method developed by Williams er al. and performed computer simulation. We have pointed out that the connection between the vibration spectrum and the ultrasonic attenuation in sintered metal powders.
引用
收藏
页码：675 / 677
页数：3
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