Observation of in-plane anomalous Hall effect associated with orbital magnetization

Abstract

For over a century, the Hall effect, a transverse effect under out-of-plane magnetic field or magnetization, has been a cornerstone for magnetotransport studies and applications. Modern theoretical formulation based on the Berry curvature has revealed the potential that even in-plane magnetic field can induce anomalous Hall effect, but its experimental demonstration has remained difficult due to its potentially small magnitude and strict symmetry requirements. Here we report observation of the in-plane anomalous Hall effect by measuring low-carrier density films of magnetic Weyl semimetal EuCd${}_2$Sb${}_2$. Anomalous Hall resistance exhibits distinct three-fold rotational symmetry for changes in the in-plane field component, and this can be understood in terms of out-of-plane Weyl points splitting or orbital magnetization induced by in-plane field, as also confirmed by model calculation. Our findings demonstrate the importance of in-plane field to control the Hall effect, accelerating materials development and further exploration of various in-plane field induced phenomena.

14 pages, 4 figures

References in corpus (16)

• First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe
• Observation of the Magnon Hall Effect
• Orbital magnetization in periodic insulators
• SU(2) Non-Abelian Holonomy and Dissipationless Spin Current in Semiconductors
• Chern Number Tunable Quantum Anomalous Hall Effect in Monolayer Transitional Metal Oxides via Manipulating Magnetization Orientation
• Orbital Magneto-Nonlinear Anomalous Hall Effect in Kagome Magnet Fe${}_3$Sn${}_2$
• Designing spin and orbital sources of Berry curvature at oxide interfaces
• In-plane anomalous Hall effect in PT-symmetric antiferromagnetic materials
• Planar Hall effect in topological Weyl and nodal line semimetals
• Anomalous Hall Effect and Spontaneous Orbital Magnetization in Antiferromagnetic Weyl Metal
• Molecular beam epitaxy of three-dimensionally thick Dirac semimetal Cd3As2 films
• Symmetry-based requirement for the measurement of electrical and thermal Hall conductivity under an in-plane magnetic field
• Quantized and half-quantized Anomalous Hall effect induced by in-plane magnetic field
• Engineering the in-plane anomalous Hall effect in Cd${}_3$As${}_2$ thin films
• Maximizing intrinsic anomalous Hall effect by controlling the Fermi level in simple Weyl semimetal films
• Berry curvature derived negative magnetoconductivity observed in type-II magnetic Weyl semimetal films

Cited by in corpus (10)

• Dominant orbital magnetization in the prototypical altermagnet MnTe
• Spontaneous in-plane anomalous Hall response observed in a ferromagnetic oxide
• Anomalous Hall effect in Dirac semimetal probed by in-plane magnetic field
• Stark difference in the in-plane anomalous Hall response in Zintl compounds EuA2Sb2 (A = Zn, Cd) thin films
• On the angular dependence of anomalous Hall current
• Pseudo anomalous Hall effect in semiconductors and semimetals: A classical perspective
• Cusplike feature in Hall resistivity of a uniaxial ferromagnet in nonorthogonal Hall geometry
• Magneto-cubic and magneto-linear dependence observed in an in-plane anomalous Hall magnet
• Universal classes of disorder scatterings in in-plane anomalous Hall effect
• Classical transport theory for the planar Hall effect with threefold symmetry