Interfacial Dzyaloshinskii-Moriya interaction and chiral magnetic textures in a ferrimagnetic insulator
arXiv:1906.07142 · doi:10.1103/PhysRevB.100.100406
Abstract
The interfacial Dzyaloshinskii-Moriya interaction (DMI) in multilayers of heavy metal and ferromagnetic metals enables the stabilization of novel chiral spin structures such as skyrmions. Magnetic insulators, on the other hand can exhibit enhanced dynamics and properties such as lower magnetic damping and therefore it is of interest to combine the properties enabled by interfacial DMI with insulating systems. Here, we demonstrate the presence of interfacial DMI in heterostructures that include insulating magnetic layers. We use a bilayer of perpendicularly magnetized insulating thulium iron garnet (TmIG) and the heavy metal platinum, and find a surprisingly strong interfacial DMI that, combined with spin-orbit torque results, in efficient switching. The interfacial origin is confirmed through thickness dependence measurements of the DMI, revealing the characteristic 1/thickness dependence with one order of magnitude longer decay length compared to metallic layers. We combine chiral spin structures and spin-orbit torques for efficient switching and identify skyrmions that allow us to establish the GGG/TmIG interface as the origin of the DMI.
References in corpus (15)
- Skyrmion Lattice in a Chiral Magnet
- Current-driven dynamics of chiral ferromagnetic domain walls
- Observation of room temperature magnetic skyrmions and their current-driven dynamics in ultrathin Co films
- Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films
- Spin Hall Magnetoresistance Induced by a Non-Equilibrium Proximity Effect
- Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
- Anatomy of Dzyaloshinskii-Moriya Interaction at Co/Pt Interfaces
- Dependence of the Efficiency of Spin Hall Torque on the Transparency of Pt-Ferromagnetic Layer Interfaces
- Room temperature spin-orbit torque switching induced by a topological insulator
- Determination of the Spin-Hall-Effect-Induced and the Wedged-Structure-Induced Spin Torque Efficiencies in Heterostructures with Perpendicular Magnetic Anisotropy
- Chirality from interfacial spin-orbit coupling effects in magnetic bilayers
- Topological Hall effect at above room temperature in heterostructures composed of a magnetic insulator and a heavy metal
- Role of dimensional crossover on spin-orbit torque efficiency in magnetic insulator thin films
- Interfacial Dzyaloshinskii-Moriya interaction in Ta\Co20Fe60B20\MgO nanowires
- Systematic Control of Strain-Induced Perpendicular Magnetic Anisotropy in Epitaxial Europium and Terbium Iron Garnets Thin Films
Cited by in corpus (29)
- Harnessing non-local orbital-to-spin conversion of interfacial orbital currents for efficient spin-orbit torques
- Magnetic texture based magnonics
- Oxide spin-orbitronics: spin-charge interconversion and topological spin textures
- Chiral spin-wave velocities induced by all-garnet interfacial Dzyaloshinskii-Moriya interaction in ultrathin yttrium iron garnet films
- Chirality as Generalized Spin-Orbit Interaction in Spintronics
- Computing and Memory Technologies based on Magnetic Skyrmions
- Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
- Chiral Coupling between Magnetic Layers with Orthogonal Magnetization
- Efficient spin torques in antiferromagnetic CoO/Pt quantified by comparing field- and current- induced switching
- Control of nonlocal magnon spin transport via magnon drift currents
- Efficient current-induced spin torques and field-free magnetization switching in a room-temperature van der Waals magnet
- Identifying the origin of the non-monotonic thickness dependence of spin-orbit torques and interfacial Dzyaloshinskii-Moriya interaction in a ferrimagnetic insulator heterostructure
- Current-Induced Magnetization Control in Insulating Ferrimagnetic Garnets
- Spin-wave-driven skyrmion dynamics in ferrimagnets: Effect of net angular momentum
- All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators
- Dimension transcendence and anomalous charge transport in magnets with moving multiple- spin textures
- Quantum Depinning of a Magnetic Skyrmion
- Skyrmionics in correlated oxides
- Temperature-independent ferromagnetic resonance shift in Bi-doped YIG garnets through magnetic anisotropy tuning
- Intrinsic chiral field as vector potential of the magnetic current in the zig-zag lattice of magnetic dipoles
- Compensated magnetic insulators for extremely fast spin-orbitronics
- Machine-Learning Recognition of Dzyaloshinskii-Moriya Interaction from Magnetometry
- Theory of surface-induced multiferroicity in magnetic materials, thin films and multilayers
- Dzyaloshinskii-Moriya spin density by skew scattering
- Harnessing Interlayer Magnetic Coupling for Efficient, Field-Free Current-Induced Magnetization Switching in a Magnetic Insulator
- Leveraging symmetry for an accurate spin-orbit torques characterization in ferrimagnetic insulators
- Compact pulsed laser deposition system for in-situ polarized neutron reflectometry
- Emergence of a spin Hall topological Hall effect in the non-collinear phase of the ferrimagnetic insulator terbium-iron garnet
- Coherent Microwave Driving of Domain Wall Depinning in a Ferrimagnetic Garnet