PHONON EIGENVECTORS IN SI DETERMINED BY INELASTIC NEUTRON-SCATTERING

被引：27
|
作者：
STRAUCH, D
MAYER, AP
DORNER, B
机构：
[1] UNIV MUNSTER, W-4400 MUNSTER, GERMANY
[2] INST MAX VON LAUE PAUL LANGEVIN, F-38042 GRENOBLE, FRANCE
来源：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1990年 / 78卷 / 03期
关键词：
D O I：
10.1007/BF01313321
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have determined the eigenvectors of longitudinal phonons with wavevectors in the Λ direction in Si at 12 K from inelastic neutron scattering intensities. The eigenvectors obtained from different model and quantum-mechanical calculations are at variance. Comparison of experimental and theoretical results shows that of the various theoretical predictions the ones from the bond-charge model are in best agreement with experiment. Internal-strain constants from these models and from experiment are compared. © 1990 Springer-Verlag.
引用
收藏
页码：405 / 410
页数：6
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