Spectral studies of triple orthovanadates MIBaCr2(VO4)3 having langbeinite structure |
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| Affiliation: | 1. Institute of Materials Research, Slovak Academy of Sciences, Kosice, Slovakia;2. Technical University of Kosice, Faculty of Mining, Ecology, Process Control and Geotechnology, Kosice, Slovakia;3. Institute of Catalysis, Bulgarian Academy of Sciences, Sofia, Bulgaria;1. Laboratoire de Physique des Matériaux, Faculté des Sciences de Sfax, Université de Sfax, B. P 1171, 3000, Sfax, Tunisia;2. Laboratoire de Physique des Matériaux et des Nanomatériaux Appliquée à l’Environnement, Faculté des Sciences de Gabès, Université de Gabès, cité Erriadh, 6079, Gabès, Tunisia;3. Institut Néel, B.P. 166, 38042, Grenoble Cedex 9, France;1. School of Science, Chongqing University of Posts and Telecommunications, Chongqing, 400065, PR China;2. Department of Electronics and Information Convergence Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, Yongin-si, Gyeonggi-do, 17104, Republic of Korea |
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| Abstract: | The i.r. spectra of triple orthovanadates, MIBaCr2(VO4)3 (where, MI = Li, Na or Ag) with orthorhombically distorted langbeinite structure have been obtained in the region 4000-200 cm−1 and are interpreted in terms of the internal vibrations of VO4 tetrahedra and CrO6 octahedra. The presence of CrO6 octahedra is further confirmed using diffused reflectance spectral technique. |
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