papers

Publications (86)

cond-mat.mes-hall2016

Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents

Olle Heinonen, Wanjun Jiang, Hamoud Somaily +2

Recent experiments have shown that magnetic skyrmion bubbles can be generated and injected at room temperature in thin films [W. Jiang et al, Science vol. 349, 283 (2015)]. Here, w…

cond-mat.mes-hall2015

New pathways towards efficient metallic spin Hall spintronics

Matthias Benjamin Jungfleisch, Wei Zhang, Wanjun Jiang +1

Spin Hall effects interconvert spin- and charge currents due to spin-orbit interaction, which enables convenient electrical generation and detection of diffusive spin currents and…

cond-mat.mes-hall2016

Direct Observation of the Skyrmion Hall Effect

Wanjun Jiang, Xichao Zhang, Guoqiang Yu +8

The well-known Hall effect describes the transverse deflection of charged particles (electrons or holes) in an electric-current carrying conductor under the influence of perpendicu…

cond-mat.mes-hall2017

Magnetization reversal in Py/Gd heterostructures

Pavel N. Lapa, Junjia Ding, John E. Pearson +3

Using a combination of magnetometry and magnetotransport techniques, we studied temperature and magnetic field behavior of magnetization in Py/Gd heterostructures. It was shown qua…

cond-mat.mtrl-sci2016

Spin Vortex Resonance in Non-planar Ferromagnetic Dots

Junjia Ding, Pavel Lapa, Shikha Jain +9

In planar structures, the vortex resonance frequency changes little as a function of an in-plane magnetic field as long as the vortex state persists. Altering the topography of the…

cond-mat.mes-hall2014

Spin waves in micro-structured yttrium iron garnet nanometer-thick films

Matthias B. Jungfleisch, Wei Zhang, Wanjun Jiang +8

We investigated the spin-wave propagation in a micro-structured yttrium iron garnet waveguide of nm thickness. Utilizing spatially-resolved Brillouin light scattering microsco…

cond-mat.mes-hall2019

Strong magnon-photon coupling in ferromagnet-superconducting resonator thin-film devices

Yi Li, Tomas Polakovic, Yong-Lei Wang +13

We demonstrate strong magnon-photon coupling of a thin-film permalloy device fabricated on a coplanar superconducting resonator. A coupling strength of 0.152 GHz and a cooperativit…

cond-mat.mes-hall2020

Temperature-Dependent Anisotropic Magnetoresistance and Spin-Torque-Driven Vortex Dynamics in a Single Microdisk

Sergi Lendinez, Tomas Polakovic, Junjia Ding +4

Spin-orbit-torque-driven dynamics have recently gained interest in the field of magnetism due to the reduced requirement of current densities and an increase in efficiency, as well…

cond-mat.mes-hall2017

Skyrmions in Magnetic Multilayers

Wanjun Jiang, Gong Chen, Kai Liu +3

Symmetry breaking together with strong spin-orbit interaction give rise to many exciting phenomena within condensed matter physics. A recent example is the existence of chiral spin…

cond-mat.mtrl-sci2015

All electrical manipulation of magnetization dynamics in a ferromagnet by antiferromagnets with anisotropic spin Hall effects

Wei Zhang, Matthias B. Jungfleisch, Frank Freimuth +6

We investigate spin-orbit torques of metallic CuAu-I-type antiferromagnets using spin-torque ferromagnetic resonance tuned by a dc-bias current. The observed spin torques predomina…

cond-mat.mes-hall2026

Magnonic spontaneous oscillation induced by parametric pumping

Yi Li, Carissa Kiehl, Jinho Lim +10

Spontaneous dynamic systems have attracted significant attention for their rich underlying physics such as phase-locking and synchronization. In this work, we report a new mechanis…

cond-mat.mes-hall2026

Strong coupling between propagating spin wave and microwave photons in a superconducting resonator

Yi Li, Jinho Lim, Xingzhi Wang +12

We demonstrate strong coupling between propagating spin wave modes and microwave photons in superconducting resonator-magnetic thin film hybrid circuits. By fabricating the resonat…

physics.app-ph2020

Direct Imaging of Resonant Phonon-Magnon Coupling

Chenbo Zhao, Zhizhi Zhang, Yi Li +7

Direct detection of phonons is important for the investigation of information interconversion between the resonantly coupled magnons and phonons. Here we report resonant coupling o…

cond-mat.mes-hall2015

Spin Seebeck devices using local on-chip heating

Stephen M. Wu, Frank Y. Fradin, Jason Hoffman +2

A micro-patterned spin Seebeck device is fabricated using an on-chip heater. Current is driven through a Au heater layer electrically isolated from a bilayer consisting of FeO$…

cond-mat.mtrl-sci2024

Epitaxial growth and magnetic properties of kagome metal FeSn/elemental ferromagnet heterostructures

Prajwal M. Laxmeesha, Tessa D. Tucker, Rajeev Kumar Rai +5

Binary kagome compounds TmXn (T = Mn, Fe, Co; X = Sn, Ge; m:n = 3:1, 3:2, 1:1) have garnered recent interest owing to the presence of both topological band crossings and flat bands…

cond-mat.mtrl-sci2019

Magnetic damping modulation in via the magnetic spin Hall effect

Jose Holanda, Hilal Saglam, Vedat Karakas +8

Non-collinear antiferromagnets can have additional spin Hall effects due to the net chirality of their magnetic spin structure, which provides for more complex spin-transport pheno…

cond-mat.mtrl-sci2020

Topological Hall Effect in a Topological Insulator Interfaced with a Magnetic Insulator

Peng Li, Jinjun Ding, Steven S. -L. Zhang +13

A topological insulator (TI) interfaced with a magnetic insulator (MI) may host an anomalous Hall effect (AHE), a quantum AHE, and a topological Hall effect (THE). Recent studies,…

physics.app-ph2019

Spin-Wave frequency division multiplexing in an yttrium iron garnet microstripe magnetized by inhomogeneous field

Zhizhi Zhang, Michael Vogel, Jose Holanda +9

Spin waves are promising candidates for information processing and transmission in a broad frequency range. In the realization of magnonic devices, the frequency depended division…

cond-mat.mtrl-sci2018

Independence of spin-orbit torques from the exchange bias direction in NiFe/IrMn bilayers

Hilal Saglam, J. Carlos Rojas-Sanchez, Sebastien Petit +5

We investigated a possible correlation between spin Hall angles and exchange bias in NiFe/IrMn samples by performing spin torque ferromagnetic resonance measurements.…

cond-mat.mtrl-sci2024

Influence of temperature, doping, and amorphization on the electronic structure and magnetic damping of iron

Zhihao Jiang, Axel Hoffmann, André Schleife

Hybrid magnonic quantum systems have drawn increased attention in recent years for coherent quantum information processing, but too large magnetic damping is a persistent concern w…

cond-mat.other2017

High frequency dynamics modulated by collective magnetization reversal in artificial spin ice

Matthias B. Jungfleisch, Joseph Sklenar, Junjia Ding +5

Spin-torque ferromagnetic resonance (ST-FMR) arises in heavy metal/ferromagnet heterostructures when an alternating charge current is passed through the bilayer stack. The methodol…

cond-mat.mtrl-sci2014

Effects of strain on the valence band structure and exciton-polariton energies in ZnO

Markus R. Wagner, Gordon Callsen, Juan S. Reparaz +6

The uniaxial stress dependence of the band structure and the exciton-polariton transitions in wurtzite ZnO is thoroughly studied using modern first-principles calculations based on…

cond-mat.mes-hall2023

Programmable Real-Time Magnon Interference in Two Remotely Coupled Magnonic Resonators

Moojune Song, Tomas Polakovic, Jinho Lim +9

Magnon interference is a signature of coherent magnon interactions for coherent information processing. In this work, we demonstrate programmable real-time magnon interference, wit…

physics.app-ph2019

Phonon Transport Controlled by Ferromagnetic Resonance

Chenbo Zhao, Yi Li, Zhizhi Zhang +7

The resonant coupling of phonons and magnons is important for the interconversion of phononic and spin degrees of freedom. We studied the phonon transmission in LiNbO3 manipulated…

physics.optics2019

Correlative Study of Enhanced Excitonic Emission in ZnO Coated with Al Nanoparticles using Electron and Laser Excitation

Saskia Fiedler, Laurent O. Lee, Cheong Lem +4

Metal nanoparticle (NP) surface coatings are known to significantly enhance the ultra-violet luminescence intensity of ZnO. Although there is general agreement that resonantly exci…

cond-mat.mes-hall2018

Thermal Behavior of a Single Magnetic Vortex Studied with Magnetotransport

Sergi Lendinez, Junjia Ding, Tomas Polakovic +3

Spin textures such as skyrmions and magnetic vortices are good candidates for a variety of applications, such as magnetic memories, oscillators and neuromorphic computing. Understa…

cond-mat.mtrl-sci2024

Spin-polarized antiferromagnetic metals

Soho Shim, M. Mehraeen, Joseph Sklenar +3

Spin-polarized antiferromagnets have recently gained significant interest because they combine the advantages of both ferromagnets (spin polarization) and antiferromagnets (absence…

cond-mat.mtrl-sci2024

Strong Damping-Like Torques in Wafer-Scale MoTe Grown by MOCVD

Stasiu Thomas Chyczewski, Hanwool Lee, Shuchen Li +4

The scalable synthesis of strong spin orbit coupling (SOC) materials such as 1T phase MoTe is crucial for spintronics development. Here, we demonstrate wafer-scale…

cond-mat.mes-hall2021

Field-tunable interactions and frustration in underlayer-mediated artificial spin ice

Susan Kempinger, Yu-Sheng Huang, Paul Lammert +5

Artificial spin ice systems have opened experimental windows into a range of model magnetic systems through the control of interactions among nanomagnet moments. This control has p…

cond-mat.mes-hall2022

Dynamic Fingerprints of Synthetic Antiferromagnet Nanostructures with Interfacial Dzyaloshinskii-Moriya Interaction

Martin Lonsky, Axel Hoffmann

Synthetic antiferromagnet (SAF) nanostructures with interfacial Dzyaloshinskii-Moriya interaction can host topologically distinct spin textures such as skyrmions and thus are regar…

physics.optics2019

Enhancement of the UV emission from gold/ZnO nanorods exhibiting no green luminescence

Saskia Fiedler, Laurent O. Lee Cheong Lem, Cuong Ton-That +2

Large reflection losses at interfaces in light emitting semiconductor devices cause a significant reduction in their light emission and energy efficiencies. Metal nanoparticle (NP)…

cond-mat.mtrl-sci2019

Distinguishing antiferromagnetic spin sublattices via the spin Seebeck effect

Yongming Luo, Changjiang Liu, Hilal Saglam +7

Antiferromagnets are beneficial for future spintronic applications due to their zero magnetic moment and ultrafast dynamics. But gaining direct access to their antiferromagnetic or…

cond-mat.mes-hall2020

Coherent spin pumping in a strongly coupled magnon-magnon hybrid system

Yi Li, Wei Cao, Vivek P. Amin +10

We experimentally identify coherent spin pumping in the magnon-magnon hybrid modes of permalloy/yttrium iron garnet (Py/YIG) bilayers. Using broadband ferromagnetic resonance, an "…

cond-mat.mes-hall2013

Dependence of spin pumping spin Hall effect measurements on layer thicknesses and stacking order

Vincent Vlaminck, John E. Pearson, Sam D. Bader +1

Voltages generated from inverse spin Hall and anisotropic magneto-resistance effects via spin pumping in ferromagnetic (F)/non-magnetic (N) bilayers are investigated by means of a…

cond-mat.mtrl-sci2016

Antiferromagnetic spin Seebeck Effect

Stephen M. Wu, Wei Zhang, Amit KC +6

We report on the observation of the spin Seebeck effect in antiferromagnetic MnF. A device scale on-chip heater is deposited on a bilayer of Pt (4 nm)/MnF (110) (30 nm) gro…

cond-mat.mtrl-sci2023

Integrating Magnons for Quantum Information

Zhihao Jiang, Jinho Lim, Yi Li +7

Magnons, the quanta of collective spin excitations in magnetically ordered materials, have distinct properties that make them uniquely appealing for quantum information application…

cond-mat.mes-hall2006

Dynamics of thin-film spin-flip transistors with perpendicular source-drain magnetizations

Xuhui Wang, Gerrit E. W. Bauer, Axel Hoffmann

A "spin-flip transistor" is a lateral spin valve consisting of ferromagnetic source drain contacts to a thin-film normal-metal island with an electrically floating ferromagnetic ba…

cond-mat.str-el2020

Perspective on Metallic Antiferromagnets

Saima A. Siddiqui, Joseph Sklenar, Kisung Kang +4

Antiferromagnet materials have recently gained renewed interest due to their possible use in spintronics technologies, where spin transport is the foundation of their functionaliti…

cond-mat.other2017

Magnetic vortex nucleation/annihilation in artificial-ferrimagnet microdisks

Pavel N. Lapa, Junjia Ding, Charudatta Phatak +4

The topological nature of magnetic-vortex state gives rise to peculiar magnetization reversal observed in magnetic microdisks. Interestingly, magnetostatic and exchange energies wh…

cond-mat.mtrl-sci2024

Unconventional Spin-Orbit Torques from Sputtered MoTe2 Films

Shuchen Li, Jonathan Gibbons, Stasiu Chyczewski +7

Materials with strong spin-orbit coupling and low crystalline symmetry are promising for generating large unconventional spin-orbit torques (SOTs), such as in-plane field-like (FL)…

cond-mat.mtrl-sci2021

Large Exotic Spin Torques in Antiferromagnetic Iron Rhodium

Jonathan Gibbons, Takaaki Dohi, Vivek P. Amin +16

Spin torque is a promising tool for driving magnetization dynamics for novel computing technologies. These torques can be easily produced by spin-orbit effects, but for most conven…

cond-mat.mtrl-sci2020

Anomalous Hall and Nernst Effects in FeRh

Hilal Saglam, Changjiang Liu, Yi Li +9

Antiferromagnets with tunable phase transitions are promising for future spintronics applications. We investigated spin-dependent transport properties of FeRh thin films, which sho…

cond-mat.mes-hall2020

Control of spin dynamics in artificial honeycomb spin-ice-based nanodisks

Mojtaba Taghipour Kaffash, Wonbae Bang, Sergi Lendinez +3

We report the experimental and theoretical characterization of the angular-dependent spin dynamics in arrays of ferromagnetic nanodisks arranged on a honeycomb lattice. The magneti…

cond-mat.mtrl-sci2024

Thermal contribution to current-driven antiferromagnetic-order switching

Myoung-Woo Yoo, Virginia O. Lorenz, Axel Hoffmann +1

In information technology devices, current-driven state switching is crucial in various disciplines including spintronics, where the contribution of heating to the switching mechan…

cond-mat.supr-con2018

Room temperature deposition of superconducting Niobium Nitride films by ion beam assisted sputtering

Tomas Polakovic, Sergi Lendinez, John E. Pearson +8

We use room temperature ion beam assisted sputtering (IBAS) to deposit niobium nitride thin films. Electrical and structural characterizations were performed by electric transport…

cond-mat.mtrl-sci2019

Giant anisotropy of Gilbert damping in epitaxial CoFe films

Yi Li, Fanlong Zeng, Steven S. -L. Zhang +9

Tailoring Gilbert damping of metallic ferromagnetic thin films is one of the central interests in spintronics applications. Here we report a giant Gilbert damping anisotropy in epi…

cond-mat.mtrl-sci2025

Magnetostriction and Temperature Dependent Gilbert Damping in Boron Doped FeGa Thin Films

Zhixin Zhang, Jinho Lim, Haoyang Ni +2

Magnetic thin films with strong magnetoelastic coupling and low Gilbert damping are key materials for many magnetoelectric devices. Here, we investigated the effects of boron dopin…

cond-mat.mes-hall2021

Roadmap of spin-orbit torques

Qiming Shao, Peng Li, Luqiao Liu +16

Spin-orbit torque (SOT) is an emerging technology that enables the efficient manipulation of spintronic devices. The initial processes of interest in SOTs involved electric fields,…

cond-mat.mes-hall2020

Dynamic Excitations of Chiral Magnetic Textures

Martin Lonsky, Axel Hoffmann

Spin eigenexcitations of skyrmions and related chiral magnetic textures have attracted considerable interest over the recent years owing to their strong potential for applications…

cond-mat.mtrl-sci2017

Interface-Induced Phenomena in Magnetism

Frances Hellman, Axel Hoffmann, Yaroslav Tserkovnyak +24

This article reviews static and dynamic interfacial effects in magnetism, focusing on interfacially-driven magnetic effects and phenomena associated with spin-orbit coupling and in…

cond-mat.mtrl-sci2022

Structural and Magnetic Properties of Pt/Co/Mn-Based Multilayers

Martin Lonsky, Myoung-Woo Yoo, Yi-Siou Huang +3

Magnetic multilayers are a rich class of materials systems with numerous highly tunable physical parameters that determine both their magnetic and electronic properties. Here we pr…

cond-mat.mes-hall2023

Evidence of Pseudogravitational Distortions of the Fermi Surface Geometry in the Antiferromagnetic Metal FeRh

Joseph Sklenar, Soho Shim, Hilal Saglam +6

The confluence between high-energy physics and condensed matter has produced groundbreaking results via unexpected connections between the two traditionally disparate areas. In thi…

cond-mat.mes-hall2016

All-electrical detection of spin dynamics in magnetic antidot lattices by the inverse spin Hall effect

Matthias B. Jungfleisch, Wei Zhang, Junjia Ding +5

The understanding of spin dynamics in laterally confined structures on sub-micron length scales has become a significant aspect of the development of novel magnetic storage technol…

cond-mat.mtrl-sci2022

Unidirectional Magnetoresistance in Antiferromagnet/Heavy-metal bilayers

Soho Shim, M. Mehraeen, Joseph Sklenar +6

The interplay between electronic transport and antiferromagnetic order has attracted a surge of interest as recent studies have shown that a moderate change in the spin orientation…

cond-mat.mtrl-sci2023

Tunable Magnon-Photon Coupling by Magnon Band Gap in a Layered Hybrid Perovskite Antiferromagnet

Yi Li, Timothy Draher, Andrew H. Comstock +17

Tunability of coherent coupling between fundamental excitations is an important prerequisite for expanding their functionality in hybrid quantum systems. In hybrid magnonics, the d…

cond-mat.mtrl-sci2021

Large Spin-to-Charge Conversion in Ultrathin Gold-Silicon Multilayers

Mohammed Salah El Hadri, Jonathan Gibbons, Yuxuan Xiao +7

Investigation of the spin Hall effect in gold has triggered increasing interest over the past decade, since gold combines the properties of a large bulk spin diffusion length and s…

cond-mat.mes-hall2020

Coupled skyrmion breathing modes in synthetic ferri- and antiferromagnets

Martin Lonsky, Axel Hoffmann

We present micromagnetic simulations of the dynamic GHz-range resonance modes of skyrmions excited by either out-of-plane ac magnetic fields or spin torques in prototypical synthet…

cond-mat.mes-hall2020

Experimental parameters, combined dynamics, and nonlinearity of a Magnonic-Opto-Electronic Oscillator (MOEO)

Yuzan Xiong, Zhizhi Zhang, Yi Li +9

We report the construction and characterization of a comprehensive magnonic-opto-electronic oscillator (MOEO) system based on 1550-nm photonics and yttirum iron garnet (YIG) magnon…

cond-mat.mes-hall2016

Insulating nanomagnets driven by spin torque

Matthias B. Jungfleisch, Junjia Ding, Wei Zhang +4

Magnetic insulators, such as yttrium iron garnet (YFeO), are ideal materials for ultra-low power spintronics applications due to their low energy dissipation and eff…

cond-mat.mes-hall2023

Unidirectional Microwave Transduction with Chirality Selected Short-Wavelength Magnon Excitations

Yi Li, Tzu-Hsiang Lo, Jinho Lim +7

Nonreciprocal magnon propagation has recently become a highly potential approach of developing chip-embedded microwave isolators for advanced information processing. However, it is…

cond-mat.mes-hall2016

Mobile Néel skyrmions at room temperature: status and future

Wanjun Jiang, Wei Zhang, Guoqiang Yu +9

Magnetic skyrmions are topologically protected spin textures that exhibit many fascinating features. As compared to the well-studied cryogenic Bloch skyrmions in bulk materials, we…

cond-mat.mtrl-sci2024

Unraveling the origin of antiferromagnetic coupling at YIG/permalloy interface

Jiangchao Qian, Yi Li, Zhihao Jiang +6

We investigate the structural and electronic origin of antiferromagnetic (AFM) coupling in the Yttrium iron garnet (YIG) and permalloy (Py) bilayer system at the atomic level. Ferr…

cond-mat.mtrl-sci2015

New Reversal Mode in Exchange Coupled Antiferromagnetic/Ferromagnetic Disks: Distorted Viscous Vortex

Dustin A. Gilbert, Li Ye, Aïda Varea +10

Magnetic vortices have generated intense interest in recent years due to their unique reversal mechanisms, fascinating topological properties, and exciting potential applications.…

cond-mat.mes-hall2018

Fresnel diffraction of spin waves

Nicolás Loayza, Matthias Benjamin Jungfleisch, Axel Hoffmann +2

The propagation of magnetostatic forward volume waves excited by a constricted coplanar waveguide is studied via inductive spectroscopy techniques. A series of devices consisting o…

cond-mat.mes-hall2026

Micromagnetic simulations for magnetic multipoles

Myoung-Woo Yoo, Roland Winkler, Axel Hoffmann

Cluster magnetic multipoles are order parameters that characterize the symmetry of spin arrangements in magnetic materials. In particular, high-order multipoles play a pivotal role…

cond-mat.mes-hall2025

Spin-Torque-Driven Non-uniform Dynamics of an Antivortex Core in Truncated Astroid Shaped Nanomagnets

Ahmet Koral Aykin, Hasan Piskin, Bayram Kocaman +12

Spin textures that are not readily available in the domain structures of continuous magnetic thin films can be stabilized when patterned to micro/nano scales due to the dominant ef…

cond-mat.mes-hall2020

Hybrid magnonics: physics, circuits and applications for coherent information processing

Yi Li, Wei Zhang, Vasyl Tyberkevych +3

Hybrid dynamic systems have recently gained interests with respect to both fundamental physics and device applications, particularly with their potential for coherent information p…

cond-mat.mtrl-sci2024

Unconventional Field-Like Spin-Torques in CrPt

Robin Klause, Yuxuan Xiao, Jonathan Gibbons +5

The topological semimetal CrPt has potential for generating unconventional spin torques due to its ferrimagnetic ordering, topological band structure, and high anomalous Hall e…

cond-mat.mtrl-sci2025

Non-reciprocal Magnetoresistances in Chiral Tellurium

Shuchen Li, Chang Niu, Peide D. Ye +1

Materials with broken fundamental symmetries, such as chiral crystals, provide a rich playground for exploring unconventional spin-dependent transport phenomena. The interplay betw…

cond-mat.mes-hall2026

The 2026 Skyrmionics Roadmap

Sabri Koraltan, Claas Abert, Manfred Albrecht +64

Magnetic skyrmions and related topological spin textures have emerged as a central topic in condensed-matter physics, combining fundamental significance with potential for transfor…

cs.ET2022

Quantum materials for energy-efficient neuromorphic computing

Axel Hoffmann, Shriram Ramanathan, Julie Grollier +16

Neuromorphic computing approaches become increasingly important as we address future needs for efficiently processing massive amounts of data. The unique attributes of quantum mate…

cond-mat.mes-hall2019

Controlled interconversion of quantized spin wave modes via local magnetic fields

Zhizhi Zhang, Michael Vogel, José Holanda +9

In the emerging field of magnonics, spin waves are considered for information processing and transmission at high frequencies. Towards this end, the manipulation of propagating spi…

cond-mat.mes-hall2015

Epitaxial patterning of nanometer-thick Y3Fe5O12 films with low magnetic damping

Shaozhen Li, Wei Zhang, Junjia Ding +3

Magnetic insulators such as yttrium iron garnet, Y3Fe5O12, with extremely low magnetic damping have opened the door for low power spin-orbitronics due to their low energy dissipati…

cond-mat.mes-hall2021

Advances in coherent coupling between magnons and acoustic phonons

Yi Li, Chenbo Zhao, Wei Zhang +2

The interaction between magnetic and acoustic excitations have recently inspired many interdisciplinary studies ranging from fundamental physics to circuit implementation. Specific…

cond-mat.mtrl-sci2019

Tuning edge localized spin waves in magnetic microstripes by proximate magnetic structures

Zhizhi Zhang, Michael Vogel, M. Benjamin Jungfleisch +3

The propagation of edge localized spin waves (E-SWs) in yttrium iron garnet (YIG) microstripes with/without the proximate magnetic microstructures is investigated by micromagnetic…

cond-mat.mtrl-sci2020

Strong near-field light-matter interaction in plasmon-resonant tip-enhanced Raman scattering in indium nitride

Emanuele Poliani, Daniel Seidlitz, Maximilian Ries +4

We report a detailed study of the strong near-field Raman scattering enhancement which takes place in tip-enhanced Raman scattering (TERS) in indium nitride. In addition to the wel…

cond-mat.mtrl-sci2020

Probing magnon-magnon coupling in exchange coupled YFeO/Permalloy bilayers with magneto-optical effects

Yuzan Xiong, Yi Li, Mouhamad Hammami +9

We demonstrate the magnetically-induced transparency (MIT) effect in YFeO(YIG)/Permalloy(Py) coupled bilayers. The measurement is achieved via a heterodyne detection…

cond-mat.mes-hall2019

Generation and Hall effect of skyrmions enabled via using nonmagnetic point contacts

Zidong Wang, Xichao Zhang, Jing Xia +9

To enable functional skyrmion based spintronic devices, the controllable generation and manipulation of skyrmions is essential. While the generation of skyrmions by using a magneti…

cond-mat.mes-hall2026

Emulating 2D Materials with Magnons

Bobby Kaman, Jinho Lim, Yingkai Liu +1

Spin waves (magnons) in 2D materials have received increasing interest due to their unique states and potential for tunability. However, many interesting features of these systems,…

quant-ph2024

High dynamic-range quantum sensing of magnons and their dynamics using a superconducting qubit

Sonia Rani, Xi Cao, Alejandro E. Baptista +2

Magnons can endow quantum devices with new functionalities. Assessing their potential requires precise characterization of magnon properties. Here, we use a superconducting qubit t…

cond-mat.mtrl-sci2020

Voltage control of magnon spin currents in antiferromagnetic Cr2O3

Changjiang Liu, Yongming Luo, Deshun Hong +6

Voltage-controlled spintronic devices utilizing the spin degree of freedom are desirable for future applications, and may allow energy-efficient information processing. Pure spin c…

cond-mat.mtrl-sci2024

Magnon mediated spin pumping by coupled ferrimagnetic garnets heterostructure

Anupama Swain, Kshitij Singh Rathore, Pushpendra Gupta +6

Spin pumping has significant implications for spintronics, providing a mechanism to manipulate and transport spins for information processing. Understanding and harnessing spin cur…

cond-mat.mes-hall2015

Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect

Joseph Sklenar, Wei Zhang, Matthias B. Jungfleisch +6

We demonstrate the generation and detection of spin-torque ferromagnetic resonance in Pt/YIG bilayers. A unique attribute of this system is that the spin Hall effect lies at the he…

physics.ed-ph2024

Numerical simulation projects in micromagnetics with Jupyter

Martin Lonsky, Martin Lang, Samuel Holt +6

We report a case study where an existing materials science course was modified to include numerical simulation projects on the micromagnetic behavior of materials. The Ubermag micr…

cond-mat.mtrl-sci2015

Blowing Magnetic Skyrmion Bubbles

Wanjun Jiang, Pramey Upadhyaya, Wei Zhang +9

Soap bubbles form when blowing air through a suspended thin film of soapy water and this phenomenon entertains children and adults alike. The formation of soap bubbles from thin fi…

cond-mat.mes-hall2017

On thresholdless lasing features in high- nitride nanobeam cavities: a quantum optical study

Stefan T. Jagsch, Noelia Vico Triviño, Frederik Lohof +11

Exploring the limits of spontaneous emission coupling is not only one of the central goals in the development of nanolasers, it is also highly relevant regarding future large-scale…