Far-infrared optical properties of YVO 4 single crystal

C. Z. Bi, J. Y. Ma, J. Yan, X. Fang, D. Z. Yao, B. R. Zhao and X. G. Qiu ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2006, vol. 51, issue 2, 167-171

Abstract: Near-normal incident infrared reflectivity spectra of a (001) YVO 4 single crystal have been measured at different temperatures in the frequency region between 100 and 6000 cm -1 . The reflectivity spectra are analyzed with the factorized form of the dielectric function, and the dielectric properties and optical conductivity of the YVO 4 crystal are obtained. From the TO/LO splitting, effective charges at different temperatures are calculated to study the ionicity of YVO 4 . The internal modes of the VO 4 3- ion and the external modes of the Y(VO 4 ) lattice are compared with SiO 4 4- in zircon and with other rare-earth vanadates. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Keywords: 77.22.Ch Permittivity (dielectric function); 78.20.-e Optical properties of bulk materials and thin films; 63.20.-e Phonons in crystal lattices (search for similar items in EconPapers)
Date: 2006
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Citations: View citations in EconPapers (6)

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DOI: 10.1140/epjb/e2006-00206-x

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