Acoustic Properties of Ho2Si2O7 Single Crystal Investigated by Brillouin Light Scattering

被引：0
作者：
Shabbir, G. [1 ]
Maqsood, A. [2 ]
Izhar-ul-Haq [3 ]
机构：
[1] ATCOP, Div Phys, Islamabad, Pakistan
[2] NUST, Sch Chem & Mat Engn, Islamabad, Pakistan
[3] Comsats Inst Informat Technol, Islamabad, Pakistan
来源：
ADVANCED MATERIALS XII | 2012年 / 510-511卷
关键词：
Crystal growth; Elastic properties; Spectroscopy;
D O I：
10.4028/www.scientific.net/KEM.510-511.143
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Micro-Brillouin light scattering experiments were performed on flux grown D-type (monoclinic, P2(1)/c) Ho2Si2O7 single crystal from room temperature to similar to 850 K. Both the hypersonic velocity (V-LA) and related elastic constant (c(33)) of the longitudinal acoustic phonons propagating along < 001 >-direction showed a small dispersion at T similar to 565 K whereas the same could not be observed clearly in attenuation/damping. The overall temperature dependent behavior of elastic constant and hypersonic velocity was attributed to the lattice anharmonicity of the crystal in the investigated temperature range.
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页码：143 / +
页数：3
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