Raman scattering study of crystalline and melting states of BaO·2B2O3

High-Pressure Synthesis, Electronic Properties, and Raman Spectroscopy of Barium Tetraborate BaB4O7 Polymorphs

“…We managed to find two works dedicated to Raman scattering of the α-BaB 4 O 7 phases. 36,38 The spectrum registered in this work is in good agreement with the data of ref 36 (Figure S4) and does not agree with the data for α-BaB 4 O 7 doped with samarium. 38 We believe that the Raman spectra given in the latter work contain bands typical of β-BaB 2 O 4 , 15 namely, the strongest band at about 637 cm −1 , the bands at about 788, 1524, and 1540 cm −1 .…”

“…34 The metastable ambient-pressure phase was first mentioned by Greene and Wahlers. 35 Further study of phase stability at ambient pressure was carried out by Solntsev et al 36 The authors studied the dependence of melting and crystallization character of barium tetraborate glasses on the temperature-time prehistory in situ by Raman spectroscopy. 36 Both ambient-pressure phases were characterized by X-ray diffraction patterns.…”

“…35 Further study of phase stability at ambient pressure was carried out by Solntsev et al 36 The authors studied the dependence of melting and crystallization character of barium tetraborate glasses on the temperature-time prehistory in situ by Raman spectroscopy. 36 Both ambient-pressure phases were characterized by X-ray diffraction patterns. The X-ray diffraction data of α-BaB 4 O 7 modification agree well with the ICDC data.…”

Characterisation and luminescence studies of Tm and Na doped magnesium borate phosphors

“…Although there are few examples in the literature on Raman study of borates crystals there are not yet literature examples on the Raman spectrum of the MgB 4 O 7 . Borate glasses and borates crystals may exhibit different behaviour on the number of possible vibration modes (Solntsev et al, 2010;Yano et al, 2003).…”

Synthesis and Raman properties of magnesium borate micro/nanorods

“…But there were few reports about Raman research on borates crystals, and no information on the Raman spectrum of the Mg 2 B 2 O 5 crystal is available yet. The vibration modes may be different between borate glasses and borates crystals [22,23]. Herein the room temperature experimental Raman spectrum of Mg 2 B 2 O 5 crystal was obtained, and its theoretical Raman spectrum was also calculated by quantum chemical methods.…”