Magnetism of insulator Sr2IrO4 with strong spin-orbit coupling

被引：6
|
作者：
Ge, Min [1 ]
Tan, Shun [1 ]
Huang, Yuanjie [1 ]
Zhang, Lei [2 ]
Tong, Wei [2 ]
Pi, Li [1 ,2 ]
Zhang, Yuheng [1 ,2 ]
机构：
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
[2] Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2013年 / 345卷
基金：
中国国家自然科学基金;
关键词：
micromagnetism; spin-orbit coupling;
D O I：
10.1016/j.jmmm.2013.05.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetic properties of polycrystalline sample Sr2IrO4 have been investigated by the magnetization, electron magnetic resonance (EMR), the infrared (IR) and Raman spectra measurements. Our experimental results indicate that the magnetism is determined by the effective total angular moment J(eff) = 1/2 instead of the spin with S = 1/2. The temperature dependence of macromagnetic moment, resonance field of EMR line, A(2u) mode of IR and A(1g) mode of Raman spectra exhibit interesting behavior at about 40 K. Due to the Dzyaloshinskii-Moriya interaction, the magnetic order is canted, and the ferromagnetic component decreases with decreasing temperature. These complex magnetic behaviors in the system are attributed to the change of Ir-O-Ir bond angle with cooling, while the variation of bond angle is observed through the IR and Raman spectra. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：13 / 17
页数：5
相关论文
共 50 条
  • [31] Ab initio Studies on the Interplay between Spin-Orbit Interaction and Coulomb Correlation in Sr2IrO4 and Ba2IrO4
    Arita, R.
    Kunes, J.
    Kozhevnikov, A. V.
    Eguiluz, A. G.
    Imada, M.
    PHYSICAL REVIEW LETTERS, 2012, 108 (08)
  • [32] Correlated motion of particle -hole excitations across the renormalized spin-orbit gap in Sr2IrO4
    Mohapatra, Shubhajyoti
    Singh, Avinash
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2020, 512
  • [33] Theoretical studies of a three-band Hubbard model with a strong spin-orbit coupling for 5d transition metal oxide Sr2IrO4
    Shirakawa, Tomonori
    Watanabe, Hiroshi
    Yunoki, Seiji
    24TH IUPAP CONFERENCE ON COMPUTATIONAL PHYSICS (IUPAP-CCP 2012), 2013, 454
  • [34] Magnetic ordering in spin-orbit Mott insulator Ba2IrO4 probed by μSR
    Okabe, H.
    Isobe, M.
    Takayama-Muromachi, E.
    Koda, A.
    Takeshita, S.
    Hiraishi, M.
    Miyazaki, M.
    Kadono, R.
    Miyake, Y.
    Akimitsu, J.
    26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5, 2012, 400
  • [35] Anomalous High-Energy Waterfall-Like Electronic Structure in 5 d Transition Metal Oxide Sr2IrO4 with a Strong Spin-Orbit Coupling
    Liu, Yan
    Yu, Li
    Jia, Xiaowen
    Zhao, Jianzhou
    Weng, Hongming
    Peng, Yingying
    Chen, Chaoyu
    Xie, Zhuojin
    Mou, Daixiang
    He, Junfeng
    Liu, Xu
    Feng, Ya
    Yi, Hemian
    Zhao, Lin
    Liu, Guodong
    He, Shaolong
    Dong, Xiaoli
    Zhang, Jun
    Xu, Zuyan
    Chen, Chuangtian
    Cao, Gang
    Dai, Xi
    Fang, Zhong
    Zhou, X. J.
    SCIENTIFIC REPORTS, 2015, 5
  • [36] Anomalous High-Energy Waterfall-Like Electronic Structure in 5 d Transition Metal Oxide Sr2IrO4 with a Strong Spin-Orbit Coupling
    Yan Liu
    Li Yu
    Xiaowen Jia
    Jianzhou Zhao
    Hongming Weng
    Yingying Peng
    Chaoyu Chen
    Zhuojin Xie
    Daixiang Mou
    Junfeng He
    Xu Liu
    Ya Feng
    Hemian Yi
    Lin Zhao
    Guodong Liu
    Shaolong He
    Xiaoli Dong
    Jun Zhang
    Zuyan Xu
    Chuangtian Chen
    Gang Cao
    Xi Dai
    Zhong Fang
    X. J. Zhou
    Scientific Reports, 5
  • [37] Influence of the multiplet structure on the photoemission spectra of spin-orbit driven Mott insulators: Application to Sr2IrO4
    Paerschke, Ekaterina M.
    Ray, Rajyavardhan
    PHYSICAL REVIEW B, 2018, 98 (06)
  • [38] Theoretical study of insulating mechanism in multiorbital Hubbard models with a large spin-orbit coupling: Slater versus Mott scenario in Sr2IrO4
    Watanabe, Hiroshi
    Shirakawa, Tomonori
    Yunoki, Seiji
    PHYSICAL REVIEW B, 2014, 89 (16)
  • [39] Nonsymmorphic Dirac semimetal and carrier dynamics in the doped spin-orbit-coupled Mott insulator Sr2IrO4
    Han, J. W.
    Kim, Sun-Woo
    Kyung, W. S.
    Kim, C.
    Cao, G.
    Chen, X.
    Wilson, S. D.
    Cheon, Sangmo
    Lee, J. S.
    PHYSICAL REVIEW B, 2020, 102 (04)
  • [40] Impact of Sn substitution on the structure and magnetism of Sr2IrO4
    May, Andrew F.
    Cao, Huibo
    Calder, Stuart
    PHYSICAL REVIEW MATERIALS, 2018, 2 (09):
12345