0000000000199387

AUTHOR

Jinbo Yang

showing 4 related works from this author

Interfacial Dzyaloshinskii-Moriya interaction and chiral magnetic textures in a ferrimagnetic insulator

2019

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, comb…

Materials science530 Physicschemistry.chemical_elementFOS: Physical sciencesInsulator (electricity)02 engineering and technology01 natural sciencesCondensed Matter::Materials Sciencechemistry.chemical_compoundFerrimagnetism0103 physical sciences010306 general physicsCondensed Matter - Materials ScienceCondensed matter physicsSkyrmionGadolinium gallium garnetMaterials Science (cond-mat.mtrl-sci)Heterojunction530 Physik021001 nanoscience & nanotechnologyThuliumchemistryFerromagnetismMagnetic dampingCondensed Matter::Strongly Correlated Electrons0210 nano-technologyPhysical Review B
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Identifying the origin of the nonmonotonic thickness dependence of spin-orbit torque and interfacial Dzyaloshinskii-Moriya interaction in a ferrimagn…

2020

Electrical manipulation of magnetism via spin-orbit torques (SOTs) promises efficient spintronic devices. In systems comprising magnetic insulators and heavy metals, SOTs have started to be investigated only recently, especially in systems with interfacial Dzyaloshinskii-Moriya interaction (iDMI). Here, we quantitatively study the SOT efficiency and iDMI in a series of gadolinium gallium garnet (GGG) / thulium iron garnet (TmIG) / platinum (Pt) heterostructures with varying TmIG and Pt thicknesses. We find that the non-monotonic SOT efficiency as a function of the magnetic layer thickness is not consistent with the 1/thickness dependence expected from a simple interfacial SOT mechanism. Mor…

Condensed Matter - Materials ScienceMaterials scienceCondensed matter physicsSpintronics530 PhysicsMagnetismEnergy level splittingMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciencesGadolinium gallium garnetInsulator (electricity)Heterojunction02 engineering and technologyElectron530 Physik021001 nanoscience & nanotechnology01 natural scienceschemistry.chemical_compoundchemistryFerrimagnetismMagnet0103 physical sciences010306 general physics0210 nano-technologySpin orbit torquePhysical Review B
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Harnessing Orbital-to-Spin Conversion of Interfacial Orbital Currents for Efficient Spin-Orbit Torques.

2020

The system generates two errors of "Bad character(s) in field Abstract" for no reason. Please refer to the manuscript for the full abstract.

Materials science530 PhysicsMagnetismFOS: Physical sciencesGeneral Physics and AstronomyNon-equilibrium thermodynamicschemistry.chemical_elementInverse01 natural sciences0103 physical sciencesddc:530010306 general physicsSpin (physics)Spin-½CouplingPhysicsCondensed Matter - Materials ScienceSpintronicsCondensed matter physicsMaterials Science (cond-mat.mtrl-sci)530 PhysikCoupling (probability)OrbitThuliumchemistryOrbit (dynamics)Condensed Matter::Strongly Correlated Electrons
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Interfacial Oxide Modulated unique Exchange Bias in CrPS4/Fe3GeTe2 van der Waals heterostructures

2023

Two-dimensional van der Waals heterostructures are an attractive platform for studying exchange bias due to their defect free and atomically flat interfaces. Chromium thiophosphate (CrPS4), an antiferromagnet, has uncompensated magnetic spins in a single layer that make it an excellent candidate for studying exchange bias. In this study, we examined the exchange bias in CrPS4/Fe3GeTe2 van der Waals heterostructures using anomalous Hall measurements. Our results show that the exchange bias strength is robust for clean interfaces, with a hysteresis loop shift of about 55 mT at 5 K for few-layer Fe3GeTe2, which is larger than that obtained in most van der Waals AFM/FM heterostructures. However…

Condensed Matter - Materials ScienceMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciences
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