Orbital Magneto-Nonlinear Anomalous Hall Effect in Kagome Magnet Fe3Sn2

Wang，Lujunyu1; Zhu，Jiaojiao2; Chen，Haiyun1; Wang，Hui2,3; Liu，Jinjin4; Huang，Yue Xin2,5; Jiang，Bingyan1; Zhao，Jiaji1; Shi，Hengjie1; Tian，Guang1; Wang，Haoyu1; Yao，Yugui4,6,7; Yu，Dapeng8; Wang，Zhiwei4,6,7; Xiao，Cong9,10,11; Yang，Shengyuan A.9; Wu，Xiaosong1,8,12,13

2024-03-08

10.1103/PhysRevLett.132.106601

Physical Review Letters   影响因子和分区

0031-9007

1079-7114

It has been theoretically predicted that perturbation of the Berry curvature by electromagnetic fields gives rise to intrinsic nonlinear anomalous Hall effects that are independent of scattering. Two types of nonlinear anomalous Hall effects are expected. The electric nonlinear Hall effect has recently begun to receive attention, while very few studies are concerned with the magneto-nonlinear Hall effect. Here, we combine experiment and first-principles calculations to show that the kagome ferromagnet Fe3Sn2 displays such a magneto-nonlinear Hall effect. By systematic field angular and temperature-dependent transport measurements, we unambiguously identify a large anomalous Hall current that is linear in both applied in-plane electric and magnetic fields, utilizing a unique in-plane configuration. We clarify its dominant orbital origin and connect it to the magneto-nonlinear Hall effect. The effect is governed by the intrinsic quantum geometric properties of Bloch electrons. Our results demonstrate the significance of the quantum geometry of electron wave functions from the orbital degree of freedom and open up a new direction in Hall transport effects.

SCI ; EI

英语

通讯

PHYSICS

2-s2.0-85186756474

Scopus

1.State Key Laboratory for Artificial Microstructure and Mesoscopic Physics,Frontiers Science Center for Nano-optoelectronics,Peking University,Beijing,100871,China
2.Research Laboratory for Quantum Materials,Singapore University of Technology and Design,Singapore,487372,Singapore
3.Division of Physics and Applied Physics,School of Physical and Mathematical Sciences,Nanyang Technological University,Singapore,637371,Singapore
4.Centre for Quantum Physics,Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE),School of Physics,Beijing Institute of Technology,Beijing,100081,China
5.School of Sciences,Great Bay University,Dongguan,523000,China
6.Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems,Beijing Institute of Technology,Beijing,100081,China
7.Material Science Center,Yangtze Delta Region Academy of Beijing Institute of Technology,Jiaxing,China
8.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
9.Institute of Applied Physics and Materials Engineering,University of Macau,Macau,Taipa,Macao
10.Department of Physics,The University of Hong Kong,Hong Kong,Hong Kong
11.HKU-UCAS Joint Institute of Theoretical and Computational Physics at Hong Kong,China
12.Collaborative Innovation Center of Quantum Matter,Beijing,100871,China
13.Peking University Yangtze Delta Institute of Optoelectronics,Nantong,Jiangsu,226010,China

Wang，Lujunyu,Zhu，Jiaojiao,Chen，Haiyun,et al. Orbital Magneto-Nonlinear Anomalous Hall Effect in Kagome Magnet Fe3Sn2[J]. Physical Review Letters,2024,132(10).

Wang，Lujunyu.,Zhu，Jiaojiao.,Chen，Haiyun.,Wang，Hui.,Liu，Jinjin.,...&Wu，Xiaosong.(2024).Orbital Magneto-Nonlinear Anomalous Hall Effect in Kagome Magnet Fe3Sn2.Physical Review Letters,132(10).

Wang，Lujunyu,et al."Orbital Magneto-Nonlinear Anomalous Hall Effect in Kagome Magnet Fe3Sn2".Physical Review Letters 132.10(2024).