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

页码：405 / 410

页数：6

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