Lattice and magnetic structure in the van der Waals antiferromagnet VBr3

被引：1
|
作者：
Gu, Yimeng [1 ,2 ]
Hao, Yiqing [3 ]
Kao, Zeyu [1 ,2 ]
Gu, Yiqing [1 ,2 ,4 ]
Liu, Feiyang [1 ,2 ]
Zheng, Shiyi [1 ,2 ]
Cao, Huibo [3 ]
He, Lunhua [5 ,6 ,7 ]
Zhao, Jun [1 ,2 ,4 ,8 ,9 ]
机构：
[1] Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China
[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[3] Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA
[4] Shanghai Res Ctr Quantum Sci, Shanghai 201315, Peoples R China
[5] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China
[6] Spallation Neutron Source Sci Ctr, Dongguan 523803, Peoples R China
[7] Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
[8] Fudan Univ, Inst Nanoelect & Quantum Comp, Shanghai 200433, Peoples R China
[9] Hefei Natl Lab, Shanghai Branch, Shanghai 201315, Peoples R China
来源：
PHYSICAL REVIEW B | 2024年 / 110卷 / 06期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
BILBAO CRYSTALLOGRAPHIC SERVER; REPRESENTATION ANALYSIS; CRYSTAL; SPACE;
D O I：
10.1103/PhysRevB.110.064403
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report a comprehensive investigation of the lattice and magnetic structure in van der Waals antiferromagnet VBr3, characterized by a BiI3-type structure at room temperature. Neutron diffraction experiments were performed on both polycrystalline and single-crystalline VBr3 samples, revealing clear magnetic Bragg peaks emerging below the N & eacute;el temperature of TN = 26.5 K. These magnetic Bragg peaks can be indexed by k = (0, 0.5, 1) in hexagonal notation. Our refinement analysis suggests that the antiferromagnetic order in VBr3 manifests as a zigzag structure. Moreover, we observed peak splitting for nuclear Bragg peaks in the HK plane below the structure transition temperature of TS = 90.4 K, indicating the breaking of threefold symmetry within the ab plane.
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页数：6
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