Successive electric polarization transitions induced by high magnetic field in the single-crystal antiferromagnet Co2Mo3O8

被引：15
作者：
Tang, Y. S. [1 ,2 ]
Zhou, G. Z. [1 ,2 ]
Lin, L. [3 ]
Chen, R. [4 ,5 ]
Wang, J. F. [4 ,5 ]
Lu, C. L. [4 ,5 ]
Huang, L. [1 ,2 ]
Zhang, J. H. [1 ,2 ]
Yan, Z. B. [1 ,2 ]
Lu, X. M. [1 ,2 ]
Huang, X. K. [6 ]
Jiang, X. P. [6 ]
Liu, J-M [1 ,2 ]
机构：
[1] Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
[3] Nanjing Forestry Univ, Coll Sci, Dept Appl Phys, Nanjing 210037, Peoples R China
[4] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China
[5] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
[6] Jingdezhen Ceram Inst, Sch Mat Sci & Engn, Jingdezhen 333403, Peoples R China
来源：
PHYSICAL REVIEW B | 2022年 / 105卷 / 06期
关键词：
MULTIFERROICS;
D O I：
10.1103/PhysRevB.105.064108
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The polar antiferromagnet Co2Mo3O8 was recently reported as a new multiferroic material exhibiting remarkable second-order magnetoelectric (ME) coupling effect while no other metamagnetic transitions occurred at low magnetic field. Herein, we have investigated the ME phenomena under high magnetic field (up to 60 T) in Co2Mo3O8 single crystals and observed unique ME response associated with the changes in the hidden magnetic moment on the honeycomb lattice. Two spin-flop transitions are unambiguously defined at H-c1 similar to 27 T and H-c2 similar to 31 T under H along the c axis at 1.7 K, accompanied by two successive colossal changes of electric polarization. The results on the anisotropy of magnetoelectricity as well as the angular-dependent polarization are well consistent with the ME tensor prediction, providing a better approach to understand the evolution of magnetic structures under high magnetic field. Therefore, the hidden magnetic transitions and distinctive magnetoelectricity provide a unique platform on which the ME coupling mechanism in the presence of rich magnetic phase transitions can be explored in this 238 family.
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页数：7
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