Библиографическое описание:Synthesis and Optical Properties of Nickel-Doped Copper Metaborate Crystals : научное издание / A. D. Molchanova [et al.]. - Текст : непосредственный // Optics and Spectroscopy. - 2023. - Т.131, №8. - P. 717-722. - The study was performed with the support of Russian Science Foundation, RSF grant no. 19-12-00413. - ISSN 0030-400X. - ISSN 1562-6911, DOI 10.1134/s0030400x23060127.
Аннотация:This work presents information on the growth and spectroscopic study of single crystals of copper metaborate doped with nickel Cu<sub>1–<i>x</i></sub>Ni<sub><i>x</i></sub>B<sub>2</sub>O<sub>4</sub> (<i>x</i> <i>=</i> 0.05, 0.1). In the absorption spectra of both crystals, satellites related to Cu centers distorted by impurity Ni atoms were observed near the lines of zero phonon transitions. Polarization studies in the isotropic <i>ab</i>-plane of the tetragonal crystal Cu<sub>1–<i>x</i></sub>Ni<sub><i>x</i></sub>B<sub>2</sub>O<sub>4</sub> show the presence of linear magnetic dichroism in the magnetically ordered state, which was previously observed both in manganese-doped and undoped copper metaborates CuB<sub>2</sub>O<sub>4</sub>. The temperature of magnetic phase transitions into the collinear antiferromagnetic and into helicoidal structures, <i>T</i><sub><i>N</i></sub> <i>=</i> 19.1 K and <i>T</i> * <i>=</i> 8.6 K, respectively, were determined from the temperature dependence of the dichroic signal.
Издательство:Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд), Москва
Источник:Optics and Spectroscopy
Выпуск:Т.131, №8
Номера страниц:717-722
Держатель оригинала документа:Institute of Spectroscopy, Russian Academy of Sciences, Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Scientific and Innovation Department, Kemerovo State University, Siberian Federal University
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