Synthesis and Optical Properties of Nickel-Doped Copper Metaborate Crystals

被引：0

作者：

Molchanova, A. D. ^{[1
]}

Moshkina, E. M. ^{[2
]}

Molokeev, M. S. ^{[2
,3
,4
]}

Tropina, E. V. ^{[1
]}

Bovina, A. F. ^{[2
]}

Boldyrev, K. N. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Spect, Troitsk 108840, Moscow, Russia

[2] Russian Acad Sci, Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia

[3] Siberian Fed Univ, Krasnoyarsk 660041, Russia

[4] Kemerovo State Univ, Dept Bionanotechnol, Kemerovo 650000, Russia

来源：

OPTICS AND SPECTROSCOPY | 2023年 / 131卷 / 08期

基金：

俄罗斯科学基金会;

关键词：

3d-ions; crystal growth; optical spectroscopy; magnetic ordering; cuprates; HIGH-RESOLUTION SPECTROSCOPY; PHASE-TRANSITIONS;

D O I：

10.1134/S0030400X23060127

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This work presents information on the growth and spectroscopic study of single crystals of copper metaborate doped with nickel Cu1-xNixB2O4 (x= 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 ab-plane of the tetragonal crystal Cu1-xNixB2O4 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, T-N= 19.1 K and T * = 8.6 K, respectively, were determined from the temperature dependence of the dichroic signal.

引用

页码：717 / 722

页数：6

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