Lattice Dynamics of β-Si<suB>3</suB>N<suB>4</suB>

Chin. Phys. Lett.

1994, Vol. 11

Issue (5): 281-284 DOI:

Original Articles

Lattice Dynamics of β-Si₃N₄

CHEN Luwei;CHEN Chuanhong

Department of Physics, Xiamen University, Xiamen 361005

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CHEN Luwei, CHEN Chuanhong 1994 Chin. Phys. Lett. 11 281-284

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Abstract Valence force field model has been constructed for lattice dynamics of β-Si₃N₄. 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.

Keywords: 63.20.-e 65.50.+m

Published: 01 May 1994

PACS:	63.20.-e	(Phonons in crystal lattices)
	65.50.+m

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1994/V11/I5/0281

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