353 citations · 2k across the 33 of their papers we have counts for
17 papers · 1 filter
Metal Dielectric Heterojunction Diode with 5.7 MV/cm Breakdown Field
Zhanbo Xia, Hareesh Chandrasekar, Wyatt Moore +8
Wide and ultra-wide band gap semiconductors can provide excellent performance due to their high energy band gap, which leads to breakdown electric fields that are more than an orde…
Anisotropic Magnetoresistance and Nontrivial Spin Hall Magnetoresistance in Pt/-FeO Bilayers
Yang Cheng, Sisheng Yu, Adam S. Ahmed +3
To date, magnetic proximity effect (MPE) has only been conclusively observed in ferromagnet (FM) based systems. We report the observation of anomalous Hall effect and anisotropic m…
Effect of magnons on interfacial phonon drag in YIG/metal systems
Arati Prakash, Jack Brangham, Sarah J. Watzman +2
We examine substrate-to-film interfacial phonon drag on typical spin Seebeck heterostructures, in particular studying the effect of ferromagnetic magnons on the phonon-electron dra…
Long lifetime of thermally-excited magnons in bulk yttrium iron garnet
John S. Jamison, Zihao Yang, Brandon L. Giles +5
Spin currents are generated within the bulk of magnetic materials due to heat flow, an effect called intrinsic spin-Seebeck. This bulk bosonic spin current consists of a diffusing…
Evidence for the role of the magnon energy relaxation length in the Spin Seebeck Effect
Arati Prakash, Benedetta Flebus, Jack Brangham +3
Temperature-dependent spin-Seebeck effect data on Pt|YIG (YFeO)|GGG (GdGaO) are reported for YIG films of various thicknesses. The effect is reported…
Imaging Magnetization Structure and Dynamics in Ultrathin YIG/Pt Bilayers with High Sensitivity Using the Time-Resolved Longitudinal Spin Seebeck Effect
Jason M. Bartell, Colin L. Jermain, Sriharsha V. Aradhya +4
We demonstrate an instrument for time-resolved magnetic imaging that is highly sensitive to the in-plane magnetization state and dynamics of thin-film bilayers of yttrium iron garn…
Spin Seebeck effect through antiferromagnetic NiO
Arati Prakash, Jack Brangham, Fengyuan Yang +1
We report temperature-dependent spin-Seebeck measurements on Pt/YIG bilayers and Pt/NiO/YIG trilayers, where YIG (Yttrium iron garnet, YFeO) is an insulating ferrima…
Antiferromagnonic Spin Transport from YFeO into NiO
Hailong Wang, Chunhui Du, P. Chris Hammel +1
We observe highly efficient dynamic spin injection from YFeO (YIG) into NiO, an antiferromagnetic (AF) insulator, via strong coupling, and robust spin propagation in…
Spin Transport in Antiferromagnetic Insulators Mediated by Magnetic Correlations
Hailong Wang, Chunhui Du, P. Chris Hammel +1
We report a systematic study of spin transport in antiferromagnetic (AF) insulators having a wide range of ordering temperatures. Spin current is dynamically injected from Y3Fe5O12…
Experimental and Numerical Understanding of Localized Spin Wave Mode Behavior in Broadly Tunable Spatially Complex Magnetic Configurations
Chunhui Du, Rohan Adur, Hailong Wang +4
Spin wave modes confined in a ferromagnetic film by the spatially inhomogeneous magnetic field generated by a scanned micromagnetic tip of a ferromagnetic resonance force microscop…
Y3Fe5O12 Spin Pumping for Quantitative Understanding of Pure Spin Transport and Spin Hall Effect in a Broad Range of Materials
Chunhui Du, Hailong Wang, P. Chris Hammel +1
Using Y3Fe5O12 (YIG) thin films grown by our sputtering technique, we study dynamic spin transport in nonmagnetic (NM), ferromagnetic (FM) and antiferromagnetic (AF) materials by f…
Surprisingly large inverse spin Hall effect and systematic variation of spin-orbit coupling with d-orbital filling in 3d transition metals
Chunhui Du, Hailong Wang, Fengyuan Yang +1
It is generally believed that spin-orbit coupling (SOC) follows Z4 (atomic number) dependence and becomes significant only in heavy elements. Consequently, SOC in 3d transition met…
Effects of Strain and Buffer Layer on Interfacial Magnetization in SrCrReO Films Determined by Polarized Neutron Reflectometry
Yaohua Liu, J. M. Lucy, A. Glavic +4
We have determined the depth-resolved magnetization structures of a series of highly ordered SrCrReO (SCRO) ferrimagnetic epitaxial films via combined studies of x-ray…
Enhancement of Pure Spin Currents in Spin Pumping Y3Fe5O12/Cu/metal Trilayers through Spin Conductance Matching
Chunhui Du, Hailong Wang, Fengyuan Yang +1
Spin transport efficiency in heterostructures depends on the spin conductances of each constituent and their interfaces. We report a comparative study of spin pumping in Y3Fe5O12/C…
Damping of Confined Modes in a Ferromagnetic Thin Insulating Film: Angular Momentum Transfer Across a Nanoscale Field-defined Interface
Rohan Adur, Chunhui Du, Hailong Wang +6
We observe a dependence of the damping of a confined mode of precessing ferromagnetic magnetization on the size of the mode. The micron-scale mode is created within an extended, un…
Strain-Tunable Magnetocrystalline Anisotropy in Epitaxial Y3Fe5O12 Thin Films
Hailong Wang, Chunhui Du, Chris Hammel +1
We demonstrate strain-tuning of magnetocrystalline anisotropy over a range of more than one thousand Gauss in epitaxial Y3Fe5O12 films of excellent crystalline quality grown on lat…
Large Spin Pumping from Epitaxial Y3Fe5O12 Thin Films to Pt and W Layers
H. L. Wang, C. H. Du, Y. Pu +3
Epitaxial Y3Fe5O12 thin films have been deposited by off-axis sputtering, which exhibit excellent crystalline quality, enabling observation of large spin pumping signals in Pt/Y3Fe…