Phonon Spectra of a-SiN<suB>x</suB> : H/Si Heterostructures Observed by Brillouin Light Scattering

Chin. Phys. Lett.

1993, Vol. 10

Issue (10): 627-629 DOI:

Original Articles

Phonon Spectra of a-SiN_x : H/Si Heterostructures Observed by Brillouin Light Scattering

XIA Hua;ZHANG Wei;LI Zhifeng;QU Xuexuan;CHEN Kunji;ZHANG Xingkui

State Key Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210008

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XIA Hua, ZHANG Wei, LI Zhifeng et al 1993 Chin. Phys. Lett. 10 627-629

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Abstract Low-frequency phonon spectra in a- SiN_x : H/Si heterostructures have been observed by means of Brillouin light scattering. Measurement of the frequency shift on longitudinal and transverse acoustic phonons as well as on surface phonons enabled us to extract accurately two independent elastic moduli: c₁₁ and c₄₄ deduced from phase velocities of bulk acoustic modes and scattering wavevector, within effective medium approximation.

Keywords: 78.35.+c 68.60.Bs

Published: 01 October 1993

PACS:	78.35.+c	(Brillouin and Rayleigh scattering; other light scattering)
	68.60.Bs	(Mechanical and acoustical properties)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1993/V10/I10/0627

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	XIA Hua
	ZHANG Wei
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	CHEN Kunji
	ZHANG Xingkui

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