A new double-cell polytype of samarium aluminum dimetaborate: Synthesis, crystal structure, and spectroscopic characterization

New nonstoichiometric SmAl-dimetaborate crystals were synthesized using spontaneous nucleation from Sm2O3 – B2O3 – K2Mo3O10 flux melt. The room temperature and low-temperature single-crystal XRD investigations were carried out. Obtained solids crystallize in the non-centrosymmetric space group P 6¯2...

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Bibliographic Details
Published in:	Materials today communications Vol. 31; p. 103317
Main Authors:	Antipin, Alexander M., Volkova, Elena A., Rassulov, Victor A., Kuzmin, Nikolay N., Borovikova, Elena Yu, Latanova, Elena A., Koporulina, Elizaveta V.
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01-06-2022
Subjects:	Crystal structure Flux growth Luminescence Raman spectroscopy Samarium dimetaborate Samarium dimetaborate Flux growth Raman spectroscopy Luminescence Crystal structure
Online Access:	Get full text
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Summary:	New nonstoichiometric SmAl-dimetaborate crystals were synthesized using spontaneous nucleation from Sm2O3 – B2O3 – K2Mo3O10 flux melt. The room temperature and low-temperature single-crystal XRD investigations were carried out. Obtained solids crystallize in the non-centrosymmetric space group P 6¯2 m, with unit cells parameters a=b= 4.570(1) Å, c= 18.521(1) Å, V= 335.00(1) Å3 (for Sm2Al3.84B8O21.27, T = 295°K) and a=b= 4.563(1);Å, c= 18.505(1) Å, V= 333.91(1) Å3 (for Sm2Al3.96B8O21.30, T = 90°K), and z = 1. A comprehensive study of samarium double-cell polytype crystals was performed using scanning electron microscopy, luminescence spectroscopy and Raman measurements. [Display omitted]
ISSN:	2352-4928 2352-4928
DOI:	10.1016/j.mtcomm.2022.103317