Magnetic, resonance, and optical properties of Cu3Sm(SeO3)2O2Cl: A rare-earth francisite compound

被引：32

作者：

Zakharov, K. V. ^{[1
]}

Zvereva, E. A. ^{[1
]}

Markina, M. M. ^{[1
]}

Stratan, M. I. ^{[1
]}

Kuznetsova, E. S. ^{[1
]}

Dunaev, S. F. ^{[1
]}

Berdonosov, P. S. ^{[1
]}

Dolgikh, V. A. ^{[1
]}

Olenev, A. V. ^{[1
,2
]}

Klimin, S. A. ^{[3
]}

Mazaev, L. S. ^{[3
,4
]}

Kashchenko, M. A. ^{[3
,4
]}

Ahmed, Md. A. ^{[5
]}

Banerjee, A. ^{[5
,6
]}

Bandyopadhyay, S. ^{[5
,6
]}

Iqbal, A. ^{[7
]}

Rahaman, B. ^{[7
]}

Saha-Dasgupta, T. ^{[8
]}

Vasiliev, A. N. ^{[1
,9
,10
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

[2] Sine Theta Ltd, Moscow 119992, Russia

[3] RAS, Inst Spect, Troitsk 142190, Russia

[4] Moscow Inst Phys & Technol, Dolgoprudnyi 141707, Russia

[5] Univ Calcutta, Kolkata 700009, India

[6] Univ Calcutta, Ctr Res Nanosci & Nanotechnol, Kolkata 700098, India

[7] Aliah Univ, Kolkata 700156, India

[8] SN Bose Natl Ctr Basic Sci, Kolkata 700098, India

[9] Ural Fed Univ, Ekaterinburg 620002, Russia

[10] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia

来源：

PHYSICAL REVIEW B | 2016年 / 94卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

CRYSTAL-STRUCTURE; SPECTRA;

D O I：

10.1103/PhysRevB.94.054401

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this combined experimental and theoretical paper, we study the properties of Cu3Sm(SeO3)(2)O2Cl belonging to the francisite family of compounds, which are novel frustrated layered compounds. Cu3Sm(SeO3)(2)O2Cl is synthesized through a solid state reaction. Characterizations through measurements of magnetization, specific heat, X-band electron spin resonance, and rare-earth optical spectroscopy, establish that the compound orders antiferromagnetically at T-N = 35 K and undergoes a spin-reorientation phase transition at T-C = 8.5 K due to the interplay of anisotropies in transition metal and rare-earth subsystems. The ground state Kramers doublet of Sm is found to split only at T < T-C when the exchange field is aligned along the nonzero component of its g factor. Prior to full saturation with M-s <= 3 mu B/f.u., which is reached under application of moderate magnetic field, the magnetization is found to exhibit complicated hysteresis behavior related to field-induced metamagnetic phase transitions. The first principles calculations reveal the hierarchy of exchange interaction parameters in the kagome-type magnetic subsystem of Cu3Sm(SeO3)(2)O2Cl.

引用

页数：11

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