Anharmonic properties of soft modes in I-III-VI2 compounds

被引：0
|
作者：
Gonzalez, J [1 ]
Hennion, B
Fouret, R
Derollez, P
Lefebvre, J
Guinet, Y
机构：
[1] Univ Los Andes, Fac Ciencias, Ctr Estudios Semicond, Merida 5251, Venezuela
[2] CENS, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France
[3] Univ Lille 1, UFR Phys, Lab Dynam & Struct Mat Mol, F-59655 Villeneuve Dascq, France
来源：
TERNARY AND MULTINARY COMPOUNDS | 1998年 / 152卷
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D O I：
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中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
In this work we have measured the temperature dependence of the low-frequency Gamma(5) optical mode by Raman scattering in CuGaS2 and AgGaS2 in the range 10-300 K, and the temperature dependence of the TA[100] acoustic mode in AgGaSe2 by inelastic neutron scattering. From the results it is clear that all these phonons have a very small temperature coefficients as compared to the values obtained from the optical modes in other semiconductors.
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页码：527 / 530
页数：4
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