التفاصيل البيبلوغرافية
| العنوان: |
Far-infrared optical properties of YVO4 single crystal. |
| المؤلفون: |
Bi, C. Z., Ma, J. Y., Yan, J., Fang, X., Yao, D. Z., Zhao, B. R., Qiu, X. G. |
| المصدر: |
European Physical Journal B: Condensed Matter; May2006, Vol. 51 Issue 2, p167-171, 5p, 2 Charts, 5 Graphs |
| مصطلحات موضوعية: |
YTTRIUM, VANADATES, CRYSTALS, OPTICAL properties, DIELECTRICS |
| مستخلص: |
Near-normal incident infrared reflectivity spectra of a (001) YVO4 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 YVO4 crystal are obtained. From the TO/LO splitting, effective charges at different temperatures are calculated to study the ionicity of YVO4. The internal modes of the VO4 3- ion and the external modes of the Y(VO4) lattice are compared with SiO4 4- in zircon and with other rare-earth vanadates. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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