RAMAN-SCATTERING AND X-RAY-ABSORPTION SPECTROSCOPY IN GALLIUM NITRIDE UNDER HIGH-PRESSURE

被引：543
|
作者：
PERLIN, P [1 ]
JAUBERTHIECARILLON, C [1 ]
ITIE, JP [1 ]
SAN MIGUEL, A [1 ]
GRZEGORY, I [1 ]
POLIAN, A [1 ]
机构：
[1] POLISH ACAD SCI, UNIPRESS, HIGH PRESSURE RES CTR, PL-01142 WARSAW, POLAND
来源：
PHYSICAL REVIEW B | 1992年 / 45卷 / 01期
关键词：
D O I：
10.1103/PhysRevB.45.83
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Gallium nitride was studied by Raman scattering and x-ray-absorption spectroscopy up to 60 GPa. A high-pressure structural phase transition was observed in gallium nitride at 47 GPa by means of Raman scattering and x-ray-absorption spectroscopy. We also report the direct determination of the bulk modulus B0 of this compound (245 GPa). Gruneisen parameters of the four observed phonon modes were established. The transition pressure is compared with existing calculations.
引用
收藏
页码：83 / 89
页数：7
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