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
  • [21] Ultrathin two-dimensional superconductivity with strong spin-orbit coupling
    Nam, Hyoungdo
    Chen, Hua
    Liu, Tijiang
    Kim, Jisun
    Zhang, Chendong
    Yong, Jie
    Lemberger, Thomas R.
    Kratz, Philip A.
    Kirtley, John R.
    Moler, Kathryn
    Adams, Philip W.
    MacDonald, Allan H.
    Shih, Chih-Kang
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2016, 113 (38) : 10513 - 10517
  • [22] Insight into the magnetic behavior of Sr2IrO4: A spontaneous magnetization study
    Bhatti, Imtiaz Noor
    Pramanik, A. K.
    PHYSICS LETTERS A, 2019, 383 (15) : 1806 - 1809
  • [23] Spin-orbit enabled unconventional Stoner magnetism
    Yu, Yue
    Shishidou, Tatsuya
    Sumita, Shuntaro
    Weinert, Michael
    Agterberg, Daniel F.
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2024, 121 (46)
  • [24] Spin-orbit coupling, orbitally entangled antiferromagnetic order, and collective spin-orbital excitations in Sr2VO4
    Mohapatra, Shubhajyoti
    Singh, Dheeraj Kumar
    Ray, Rajyavardhan
    Ghosh, Sayandip
    Singh, Avinash
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2023, 35 (04)
  • [25] Doping and Raman scattering of strong spin-orbit-coupling compound Sr2-xLaxIrO4
    Liu Sheng-Li
    Li Jian-Zheng
    Cheng Jie
    Wang Hai-Yun
    Li Yong-Tao
    Zhang Hong-Guang
    Li Xing-Ao
    ACTA PHYSICA SINICA, 2015, 64 (20)
  • [26] Magnetic critical properties and basal-plane anisotropy of Sr2IrO4
    Fruchter, L.
    Colson, D.
    Brouet, V.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2016, 28 (12)
  • [27] Study of strong Σ-Π and spin-orbit vibronic coupling effects in linear triatomic molecules
    Mishra, Sabyashachi
    Domcke, Wolfgang
    Poluyanov, Leonid V.
    CHEMICAL PHYSICS, 2006, 327 (2-3) : 457 - 467
  • [28] Spin-orbit coupling in graphene structures
    Kochan, Denis
    Gmitra, Martin
    Fabian, Jaroslav
    SPINTRONICS V, 2012, 8461
  • [29] Strong antisymmetric spin-orbit coupling and superconducting properties: the case of noncentrosymmetric LaPtSi
    Palazzese, S.
    Landaeta, J. F.
    Subero, D.
    Bauer, E.
    Bonalde, I.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2018, 30 (25)
  • [30] Superconductivity in crystals with spin-orbit coupling
    Samokhin, K. V.
    MODERN PHYSICS LETTERS B, 2020, 34 (33):
12345