Raman investigations of rare earth orthovanadates

被引：87

作者：

Santos, C. C.

Silva, E. N.

Ayala, A. P.

Guedes, I.

Pizani, P. S.

Loong, C. -K.

Boatner, L. A.

机构：

[1] Univ Fed Ceara, Dept Fis, BR-60455970 Fortaleza, Ceara, Brazil

[2] Univ Fed Sao Carlos, Dept Fis, BR-13560970 Sao Carlos, SP, Brazil

[3] Argonne Natl Lab, Argonne, IL 60439 USA

[4] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

[5] Oak Ridge Natl Lab, Ctr Radiat Detect Mat & Syst, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 05期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1063/1.2437676

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Polarized Raman spectroscopy has been used to obtain the room-temperature phonon spectra of the series of rare earth orthovanadate single crystals: SmVO4, HoVO4, YbVO4, and LuVO4. The observed Raman frequencies follow the overall mode distribution expected for REVO4 compounds with the tetragonal zircon structure. The variation of the mode frequency with atomic number across the lanthanide orthovanadate series was investigated, and the trend exhibited by the internal modes was explained by considering the force constants of VO4 tetrahedron. (c) 2007 American Institute of Physics.

引用

页数：5

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