文献详情
Experimental Identification of Electric Dipoles Induced by Magnetic Monopoles in Tb2Ti2O7
文献类型:期刊
通讯作者:Zhang, QM (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.; Zhang, QM (reprint author), Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China.
期刊名称:PHYSICAL REVIEW LETTERS影响因子和分区
年:2020
卷:124
期:8
ISSN:0031-9007
所属部门:物理学系
摘要:The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic "monopoles" carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report th ...More
The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic "monopoles" carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report the experimental evidence for electric dipoles induced by magnetic monopoles in spin frustrated Tb2Ti2O7. The magnetic field applied to pyrochlore Tb2Ti2O7 along the [111] direction, brings out a "3-in-1-out" magnetic monopole configuration, and then induces a subtle structural phase transition at H-c similar to 2.3 T. The transition is made evident by the nonlinear phonon splitting under magnetic fields and the anomalous crystal-field excitations of Tb3+ ions. The observations consistently point to the displacement of the oxygen O '' anions along the [111] axis which gives rise to the formation of electric dipoles. The finding demonstrates that the scenario of magnetic monopole having both magnetic charge and electric dipole is realized in Tb2Ti2O7 and sheds light into the coupling between electricity and magnetism of magnetic monopoles in spin frustrated systems. ...Hide
DOI:10.1103/PhysRevLett.124.087601
百度学术:Experimental Identification of Electric Dipoles Induced by Magnetic Monopoles in Tb2Ti2O7
语言:外文
人气指数:2
浏览次数:2
基金:Ministry of Science and Technology of ChinaMinistry of Science and Technology, China [2017YFA0302904, 2016YFA0300504]; NSF of ChinaNational Natural Science Foundation of China [11774419, 11474357]; MOST [2016YFA0300501]; NSFCNational Natural Science Foundation of China [11974244]; Shanghai talent program
作者其他论文
Rare-Earth Chalcogenides: A Large Family of Triangular Lattice Spin Liquid Candidates.Liu, Weiwei, Zhang, Zheng, Ji, Jianting, et al. .CHINESE PHYSICS LETTERS. 2018, 35(11).
Raman scattering study of magnetic layered MPS3 crystals (M = Mn, Fe, Ni).Wang, Yi-Meng, Zhang, Jian-Feng, Li, Cheng-He, et al. .CHINESE PHYSICS B. 2019, 28(5).
Phonon anomalies and magnetic excitations in BaFe2Se2O.Jin, Feng, Lazarevic, Nenad, Liu, Changle, et al. .PHYSICAL REVIEW B. 2019, 99(14).
Incidence and severity of sexual dysfunction among women with breast cancer: a meta-analysis based on female sexual function index.Jing, Liwei, Zhang, Chao, Li, Wei, et al. .SUPPORTIVE CARE IN CANCER. 2019, 27(4), 1171-1180.
Strain Coupling and Dynamic Relaxation in a Molecular Perovskite-Like Multiferroic Metal-Organic Framework.Xin, Lipeng, Zhang, Zhiying, Carpenter, Michael A., et al. .ADVANCED FUNCTIONAL MATERIALS. 2018, 28(52).
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Experimental Identification of Electric Dipoles Induced by Magnetic Monopoles in Tb2Ti2O7
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