Lattice Dynamics of β-Si3 N4
CHEN Luwei, CHEN Chuanhong
Department of Physics, Xiamen University, Xiamen 361005
Lattice Dynamics of β-Si3 N4
CHEN Luwei;CHEN Chuanhong
Department of Physics, Xiamen University, Xiamen 361005
关键词 ：
63.20.-e ,
65.50.+m
Abstract ： Valence force field model has been constructed for lattice dynamics of β-Si3 N4 . The values of force constants were determined by fitting the phonon frequencies of r point to experimentally observed Raman spectra. The phonon dispersion curves in several principal directions in Brillouin zone, the total density of states and some phonon related physical properties were calculated.
Key words ：
63.20.-e
65.50.+m
出版日期: 1994-05-01
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