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Raman scattering in glassy Li2B4O7 doped with Er2O3

1Puga P. P., 1Danyliuk P. S,  2Gomonai A. I., 1Rizak H. V., 3Rizak I. M., 1Rizak V. M., 1Puga G. D., 4Kvetková L. and 2Byrov M. M.

1Uzhhorod National University, 54 Voloshyna Street, 88000 Uzhhorod, Ukraine;
2Institute of Electron Physics of the National Academy of Sciences of Ukraine, 21 Universytetska Street, 88017 Uzhhorod, Ukraine
3Non-Profit Foundation for Supporting Education, Science, Scientific, Technological and Innovative Activity, 173/28 Peremohy Street, 88000 Uzhhorod,   Ukraine
4Institute of Material Science of Slovak Academy of Sciences, 47 Watsonova Street, 04001 Košice, Slovak Republic. e-mail: actinate@gmail.com 

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Abstract. We study Raman scattering spectra for glassy lithium tetraborate with different concentrations of doping erbium ions. Most of the vibrational modes found for the activated Li2B4O7:Er2O3 glasses in the medium-scale range are caused by mixed and normal modes of compound boron–oxygen, erbium–oxygen and lithium–oxygen structural complexes.

Keywords: glassy lithium tetraborate, Er2O3, structural groups, hybridization, tetrahedral groups, trigonal groups, erbium–oxygen groups

PACS: 63.50.-x, 71.20.Eh, 74.25.nd, 78.30.-j
UDC: 535.375.54, 546.273
Ukr. J. Phys. Opt. 19: 211-219
doi: 10.3116/16091833/19/4/211/2018
Received: 24.09.2018

Анотація. Вивчено спектри комбінаційного розсіяння склоподібного тетраборату літію з різними концентраціями легуючих іонів ербію. Більшість вібраційних мод, знайдених для активованих стекол Li2B4O7:Er2O3 у середньомасштабному діапазоні, обумовлено змішаними та нормальними модами складних структурних комплексів бор–кисень, ербій–кисень і літій–кисень.
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