Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.1134/s0030400x23060127

Ключевые слова: 3d-ions, crystal growth, optical spectroscopy, magnetic ordering, cuprates, optics, lasers, photonics, optical devices

Аннотация: This work presents information on the growth and spectroscopic study of single crystals of copper metaborate doped with nickel Cu_1–<i>x</i>Ni_<i>x</i>B₂O₄ (<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_1–<i>x</i>Ni_<i>x</i>B₂O₄ show the presence of linear magnetic dichroism in the magnetically ordered state, which was previously observed both in manganese-doped and undoped copper metaborates CuB₂O₄. The temperature of magnetic phase transitions into the collinear antiferromagnetic and into helicoidal structures, <i>T</i>_<i>N</i> <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.

Журнал: Optics and Spectroscopy

Выпуск журнала: Т.131, №8

Номера страниц: 717-722

ISSN журнала: 0030400X

Место издания: Москва

Издатель: Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд)

• Molchanova A. D. (Institute of Spectroscopy, Russian Academy of Sciences)
• Moshkina E. M. (Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences)
• Molokeev M. S. (Scientific and Innovation Department, Kemerovo State University)
• Tropina E. V. (Institute of Spectroscopy, Russian Academy of Sciences)
• Bovina A. F. (Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences)
• Boldyrev K. N. (Institute of Spectroscopy, Russian Academy of Sciences)

• Ядро РИНЦ (eLIBRARY.RU)