Magneto-Optical Detection of the Orbital Hall Effect in Chromium

Abstract

The orbital Hall effect has been theoretically predicted but its direct observation is a challenge. Here, we report the magneto-optical detection of current-induced orbital accumulation at the surface of a light 3$d$ transition metal, Cr. The orbital polarization is in-plane, transverse to the current direction, and scales linearly with current density, consistent with the orbital Hall effect. Comparing the thickness-dependent magneto-optical measurements with $\text{ab initio}$ calculations, we estimate an orbital diffusion length in Cr of $6.6\pm 0.6$ nm.

6 pages, 5 figures

References in corpus (11)

• Direct electronic measurement of the spin Hall effect
• Study of Intrinsic Spin Hall Effect and Orbital Hall Effect in 4d- and 5d- Transition Metals
• Observation of the orbital Hall effect in a light metal Ti
• Giant Orbital Hall Effect in Transition Metals: Origin of Large Spin and Anomalous Hall Effects
• Observation of long-range orbital transport and giant orbital torque
• Giant orbital Hall effect and orbital-to-spin conversion in 3d, 5d, and 4f metallic heterostructures
• Observation of the Orbital Rashba-Edelstein Magnetoresistance
• Theory of Current-Induced Angular Momentum Transfer Dynamics in Spin-Orbit Coupled Systems
• Maximizing Spin-Orbit Torque Generated by the Spin Hall Effect of Pt
• Intrinsic spin currents in ferromagnets
• Giant efficiency of long-range orbital torque in Co/Nb bilayers

Cited by in corpus (57)

• Electrical control of magnetism by electric field and current-induced torques
• Orbital angular momentum of Bloch electrons: equilibrium formulation, magneto-electric phenomena, and the orbital Hall effect
• Orbital relaxation length from first-principles scattering calculations
• Dyakonov-Perel-like Orbital and Spin Relaxations in Centrosymmetric Systems
• Role of Disorder in the Intrinsic Orbital Hall Effect
• Extrinsic Orbital Hall Effect: Orbital Skew Scattering and Crossover Between Diffusive and Intrinsic Orbital Transport
• Orbitronics in Two-dimensional Materials
• Orbital Pumping in Ferrimagnetic Insulators
• Anomalous Spin and Orbital Hall Phenomena in Antiferromagnetic Systems
• Orbital Hall Effect Accompanying Quantum Hall Effect: Landau Levels Cause Orbital Polarized Edge Currents
• Ultrafast Orbital Hall Effect in Metallic Nanoribbons
• Interface transparency to orbital current
• Non-conservation of the valley density and its implications for the observation of the valley Hall effect
• Topological orbital Hall effect caused by skyrmions and antiferromagnetic skyrmions
• Orbital Hall Responses in Disordered Topological Materials
• Ultrathin films of black phosphorus as suitable platforms for unambiguous observation of the orbital Hall effect
• Quantum correction to the orbital Hall effect
• Intrinsic torque on the orbital angular momentum in an electric field
• Controlling the orbital Hall effect in gapped bilayer graphene in the terahertz regime
• Evidence of Ultrashort Orbital Transport in Heavy Metals Revealed by Terahertz Emission Spectroscopy
• Chirality-induced orbital Edelstein effect in an analytically solvable model
• Quantum Kinetic Theory of the Linear Response for Weakly Disordered Multiband Systems
• Orbital-excitation-dominated magnetization dissipation and quantum oscillation of Gilbert damping in Fe films
• Nonlocal Electrical Detection of Reciprocal Orbital Edelstein Effect
• Non-reciprocity in magnon mediated charge-spin-orbital current interconversion
• Orbital Edelstein effect of electronic itinerant orbital motion at edges
• Giant orbital Hall effect due to the bulk states of 3D topological insulators
• Competing Ordinary and Hanle Magnetoresistance in Pt and Ti Thin Films
• Orbital Hall effect and topology on a two-dimensional triangular lattice: from bulk to edge
• Topological Nature of Orbital Chern Insulators
• Anatomy of torques from orbital Rashba textures: the case of Co/Al interfaces
• Valley-dependent giant orbital moments and transport feature in rhombohedral graphene multilayers
• Ultrafast chiral precession of spin and orbital angular momentum induced by circularly polarized laser pulse
• Light-induced Orbital and Spin Magnetism in $3d$, $4d$, and $5d$ Transition Metals
• Optical reflection signature of an axion dielectric with magnetic current
• Electric polarization induced by magnons and magnon Nernst effects
• Chirality-induced selectivity of angular momentum by orbital Edelstein effect in carbon nanotubes
• Orbital currents in lattice multiorbital systems: Continuity equation, torques, and RKKY interaction
• Orbital magnetization from interface reflections in a conductor with charge current
• Filtering Spin and Orbital Moment in Centrosymmetric Systems
• Universal intrinsic orbital dynamics from Berry curvature in electronic two-band systems
• Orbital splitter effect and spatial resolution of current-induced orbital accumulation
• Three-dimensional topological orbital Hall effect caused by magnetic hopfions
• Coexistent multifractal mesoscopic fluctuations in Integer Quantum Hall Transition and in Orbital Hall Transition
• Comparing the Extrinsic Orbital Hall Effect in Centrosymmetric and Noncentrosymmetric Systems: Insights from Bilayer Transition Metal Dichalcogenides
• Dynamical Orbital Angular Momentum Induced by Circularly Polarized Phonons
• Giant orbital magnetoresistance in the antiferromagnet CoO driven by dynamic orbital angular momentum interaction
• Probing quantum geometric nonlinear magnetization via second-harmonic magneto-optical Kerr effect
• Quantum geometric map of magnetotransport
• Injection of orbital angular momentum into transition metals from first-principles
• Orbital Hall effect from orbital magnetic moments of Bloch states: the role of a new correction term
• Semiclassical theory for the orbital magnetic moment of superconducting quasiparticles
• Relativistic Spin-Lattice Interaction Compatible with Discrete Translation Symmetry in Solids
• Current induced magneto-optical Kerr effect as a probe of Dirac carriers in Bi${}_{1-x}$Sb${}_x$ alloy
• Orbital enhanced intrinsic nonlinear planar Hall effect for probing topological phase transition in CuTlSe${}_2$
• Inherent electro-optic Kerr rotation
• Orbital Hall effect in spin-3/2 hole-doped semiconductors and its implications for orbitronics