VIBRATIONAL SPECTROSCOPY OF ALUMINUM NITRIDE

被引:362
|
作者
MCNEIL, LE
GRIMSDITCH, M
FRENCH, RH
机构
[1] ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439
[2] DUPONT CO INC,CENT RES & DEV,WILMINGTON,DE 19880
关键词
D O I
10.1111/j.1151-2916.1993.tb03730.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A complete description of the first-order Raman and Brillouin spectra of single-crystal aluminum nitride is provided. The frequency has been measured and the symmetry identified of each of the Raman-active zone-center optic modes, and the five independent elastic constants have been measured. The widths of the principal Raman modes increase with increasing oxygen content up to a critical value of approximately 1 at.%, after which they are constant. This behavior supports the hypothesis of a change in the nature of the oxygen defect at that concentration.
引用
收藏
页码:1132 / 1136
页数:5
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