353 citations · 2k across the 33 of their papers we have counts for
33 papers
Intelligent Reflecting Surfaces for THz Communications: Fundamentals, Key Solutions, and System Prototyping
Qingqing Wu, Yanze Zhu, Qiaoyan Peng +7
Intelligent reflecting surfaces (IRSs) have emerged as a cost-effective technology for terahertz (THz) communications by enabling programmable control of the wireless environment.…
Quantifying Spin-Orbit Torques in Antiferromagnet/Heavy Metal Heterostructures
Egecan Cogulu, Hantao Zhang, Nahuel N. Statuto +4
The effect of spin currents on the magnetic order of insulating antiferromagnets (AFMs) is of fundamental interest and can enable new applications. Toward this goal, characterizing…
Direct Imaging of Electrical Switching of Antiferromagnetic Néel Order in -FeO Epitaxial Films
Egecan Cogulu, Nahuel N. Statuto, Yang Cheng +4
We report the direct observation of switching of the Néel vector of antiferromagnetic (AFM) domains in response to electrical pulses in micron-scale Pt/-FeO Hall bars us…
Magnetic Dynamic Polymers for Modular Assembling and Reconfigurable Morphing Architectures
Xiao Kuang, Shuai Wu, Yi Jin +5
Shape morphing magnetic soft materials, composed of magnetic particles in a soft polymer matrix, can transform shapes reversibly, remotely, and rapidly, finding diverse application…
Evolutionary Algorithm Guided Voxel-Encoding Printing of Functional Hard-Magnetic Soft Active Materials
Shuai Wu, Craig M. Hamel, H. Jerry Qi +1
Hard-magnetic soft active materials (hmSAMs) have attracted a great amount of research interests due to their fast-transforming, untethered control, as well as excellent programmab…
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…
Magnetic Shape Memory Polymers with Integrated Multifunctional Shape Manipulations
Qiji Ze, Xiao Kuang, Shuai Wu +7
Shape-programmable soft materials that exhibit integrated multifunctional shape manipulations, including reprogrammable, untethered, fast, and reversible shape transformation and l…
Electrical Switching of Tristate Antiferromagnetic Néel Order in -FeO Epitaxial Films
Yang Cheng, Sisheng Yu, Menglin Zhu +2
The ability to manipulate antiferromagnetic (AF) moments is a key requirement for the emerging field of antiferromagnetic spintronics. Electrical switching of bi-state AF moments h…
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…
Strong modulation of spin currents in bilayer graphene by static and fluctuating proximity exchange fields
Simranjeet Singh, Jyoti Katoch, Tiancong Zhu +6
Two dimensional (2D) materials provide a unique platform to explore the full potential of magnetic proximity driven phenomena, which can be further used for applications in next ge…
Picosecond spin Seebeck effect
Johannes Kimling, Gyung-Min Choi, Jack T. Brangham +5
We report time-resolved magneto-optic Kerr effect measurements of the longitudinal spin Seebeck effect driven by an interfacial temperature difference between itinerant electrons a…
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…
Cantilever detected ferromagnetic resonance in thin FeNi, CoFeAlSi and SrFeMoO films using a double modulation technique
Alexey Alfonsov, Eiji Ohmichi, Pavel Leksin +5
In this work we introduce a new method of a ferromagnetic resonance (FMR) detection from thin, nm-size, films. Our setup is based on the commercial piezo-cantilever, used for atomi…
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…
Effect of Chemical Pressure on High Temperature Ferrimagnetic Double Perovskites Sr2CrOsO6 and Ca2CrOsO6
Ryan Morrow, Jennifer R. Soliz, Adam J. Hauser +7
The ordered double perovskites Sr2CrOsO6 and Ca2CrOsO6 have been synthesized and characterized with neutron powder diffraction, electrical transport measurements, and high field ma…
Enhanced weak ferromagnetism and conductivity in hole-doped pyrochlore iridate Y2Ir2O7
W. K. Zhu, M. Wang, B. Seradjeh +2
Pyrochlore iridates have recently attracted growing interest in condensed matter physics because of their potential for realizing new topological states. In order to achieve such q…
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…