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Title: Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets

Abstract

Magnetic skyrmions are topologically protected spin textures that exhibit fascinating physical behaviours and large potential in highly energy-efficient spintronic device applications. The main obstacles so far are that skyrmions have been observed in only a few exotic materials and at low temperatures, and fast current-driven motion of individual skyrmions has not yet been achieved. Here, we report the observation of stable magnetic skyrmions at room temperature in ultrathin transition metal ferromagnets with magnetic transmission soft X-ray microscopy. We demonstrate the ability to generate stable skyrmion lattices and drive trains of individual skyrmions by short current pulses along a magnetic racetrack at speeds exceeding 100 m s-1 as required for applications. Our findings provide experimental evidence of recent predictions and open the door to room-temperature skyrmion spintronics in robust thin-film heterostructures.

Authors:
ORCiD logo [1];  [2];  [2];  [3];  [1];  [2];  [1];  [2];  [2];  [4];  [1]; ORCiD logo [1];  [5]; ORCiD logo [6]; ORCiD logo [2]; ORCiD logo [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Johannes Gutenberg Univ., Mainz (Germany)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United State)
  4. Max Planck Inst. for Intelligent Systems, Stuttgart (Germany)
  5. Johannes Gutenberg Univ., Mainz (Germany); Max Planck Inst. for Intelligent Systems, Stuttgart (Germany)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United State); Univ. of California, Santa Cruz, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1530237
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Nature Materials
Additional Journal Information:
Journal Volume: 15; Journal Issue: 5; Journal ID: ISSN 1476-1122
Publisher:
Springer Nature - Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Woo, Seonghoon, Litzius, Kai, Krüger, Benjamin, Im, Mi-Young, Caretta, Lucas, Richter, Kornel, Mann, Maxwell, Krone, Andrea, Reeve, Robert M., Weigand, Markus, Agrawal, Parnika, Lemesh, Ivan, Mawass, Mohamad-Assaad, Fischer, Peter, Kläui, Mathias, and Beach, Geoffrey S. D. Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets. United States: N. p., 2016. Web. doi:10.1038/nmat4593.
Woo, Seonghoon, Litzius, Kai, Krüger, Benjamin, Im, Mi-Young, Caretta, Lucas, Richter, Kornel, Mann, Maxwell, Krone, Andrea, Reeve, Robert M., Weigand, Markus, Agrawal, Parnika, Lemesh, Ivan, Mawass, Mohamad-Assaad, Fischer, Peter, Kläui, Mathias, & Beach, Geoffrey S. D. Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets. United States. https://doi.org/10.1038/nmat4593
Woo, Seonghoon, Litzius, Kai, Krüger, Benjamin, Im, Mi-Young, Caretta, Lucas, Richter, Kornel, Mann, Maxwell, Krone, Andrea, Reeve, Robert M., Weigand, Markus, Agrawal, Parnika, Lemesh, Ivan, Mawass, Mohamad-Assaad, Fischer, Peter, Kläui, Mathias, and Beach, Geoffrey S. D. Mon . "Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets". United States. https://doi.org/10.1038/nmat4593. https://www.osti.gov/servlets/purl/1530237.
@article{osti_1530237,
title = {Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets},
author = {Woo, Seonghoon and Litzius, Kai and Krüger, Benjamin and Im, Mi-Young and Caretta, Lucas and Richter, Kornel and Mann, Maxwell and Krone, Andrea and Reeve, Robert M. and Weigand, Markus and Agrawal, Parnika and Lemesh, Ivan and Mawass, Mohamad-Assaad and Fischer, Peter and Kläui, Mathias and Beach, Geoffrey S. D.},
abstractNote = {Magnetic skyrmions are topologically protected spin textures that exhibit fascinating physical behaviours and large potential in highly energy-efficient spintronic device applications. The main obstacles so far are that skyrmions have been observed in only a few exotic materials and at low temperatures, and fast current-driven motion of individual skyrmions has not yet been achieved. Here, we report the observation of stable magnetic skyrmions at room temperature in ultrathin transition metal ferromagnets with magnetic transmission soft X-ray microscopy. We demonstrate the ability to generate stable skyrmion lattices and drive trains of individual skyrmions by short current pulses along a magnetic racetrack at speeds exceeding 100 m s-1 as required for applications. Our findings provide experimental evidence of recent predictions and open the door to room-temperature skyrmion spintronics in robust thin-film heterostructures.},
doi = {10.1038/nmat4593},
journal = {Nature Materials},
number = 5,
volume = 15,
place = {United States},
year = {2016},
month = {2}
}

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Effect of inter-layer spin diffusion on skyrmion motion in magnetic multilayers
journal, July 2019


Nonlocal accumulation, chemical potential, and Hall effect of skyrmions in Pt/Co/Ir heterostructure
journal, January 2020


Topological Hall effect at above room temperature in heterostructures composed of a magnetic insulator and a heavy metal
journal, May 2019


The role of temperature and drive current in skyrmion dynamics
journal, January 2020


Skyrmion-based artificial synapses for neuromorphic computing
journal, March 2020


Magnetization switching in high-density magnetic nanodots by a fine-tune sputtering process on a large-area diblock copolymer mask
journal, January 2017

  • Barrera, G.; Celegato, F.; Coïsson, M.
  • Nanoscale, Vol. 9, Issue 43
  • DOI: 10.1039/c7nr04295g

Current-driven skyrmion dynamics in disordered films
journal, March 2017

  • Kim, Joo-Von; Yoo, Myoung-Woo
  • Applied Physics Letters, Vol. 110, Issue 13
  • DOI: 10.1063/1.4979316

Coupled breathing modes in one-dimensional Skyrmion lattices
journal, February 2018

  • Kim, Junhoe; Yang, Jaehak; Cho, Young-Jun
  • Journal of Applied Physics, Vol. 123, Issue 5
  • DOI: 10.1063/1.5010948

Electrical nucleation and detection of single 360° homochiral Néel domain walls measured using the anomalous Nernst effect
journal, June 2018

  • Cubukcu, Murat; Venkateshvaran, Deepak; Wittmann, Angela
  • Applied Physics Letters, Vol. 112, Issue 26
  • DOI: 10.1063/1.5040321

Brownian motion of skyrmion bubbles and its control by voltage applications
journal, January 2019

  • Nozaki, Takayuki; Jibiki, Yuma; Goto, Minori
  • Applied Physics Letters, Vol. 114, Issue 1
  • DOI: 10.1063/1.5070101

Stabilizing zero-field skyrmions in Ir/Fe/Co/Pt thin film multilayers by magnetic history control
journal, February 2019

  • Duong, Nghiep Khoan; Raju, M.; Petrović, A. P.
  • Applied Physics Letters, Vol. 114, Issue 7
  • DOI: 10.1063/1.5080713

Low-field formation of room-temperature biskyrmions in centrosymmetric MnPdGa magnet
journal, April 2019

  • Xiao, Xiaofei; Peng, Licong; Zhao, Xinguo
  • Applied Physics Letters, Vol. 114, Issue 14
  • DOI: 10.1063/1.5089609

Interfacial Dzyaloshinskii-Moriya interaction, interface-induced damping and perpendicular magnetic anisotropy in Pt/Co/W based multilayers
journal, October 2019

  • Benguettat-El Mokhtari, I.; Mourkas, A.; Ntetsika, P.
  • Journal of Applied Physics, Vol. 126, Issue 13
  • DOI: 10.1063/1.5119193

Zero-field topological Hall effect as evidence of ground-state skyrmions at room temperature in BiSb/MnGa bilayers
journal, December 2019

  • Duy Khang, Nguyen Huynh; Fan, Tuo; Hai, Pham Nam
  • AIP Advances, Vol. 9, Issue 12
  • DOI: 10.1063/1.5119758

Performance of synthetic antiferromagnetic racetrack memory: domain wall versus skyrmion
journal, July 2017

  • Tomasello, R.; Puliafito, V.; Martinez, E.
  • Journal of Physics D: Applied Physics, Vol. 50, Issue 32
  • DOI: 10.1088/1361-6463/aa7a98

Fast micromagnetic simulations on GPU—recent advances made with $\mathsf{mumax}^3$
journal, February 2018

  • Leliaert, J.; Dvornik, M.; Mulkers, J.
  • Journal of Physics D: Applied Physics, Vol. 51, Issue 12
  • DOI: 10.1088/1361-6463/aaab1c

Antiferromagnetic skyrmions overcoming obstacles in a racetrack
journal, March 2019

  • Silva, R. L.; Silva, R. C.; Pereira, A. R.
  • Journal of Physics: Condensed Matter, Vol. 31, Issue 22
  • DOI: 10.1088/1361-648X/ab0abd

Field-tuned spin excitation spectrum of skyrmion
journal, August 2019


Current-Driven Skyrmion Dynamics and Drive-Dependent Skyrmion Hall Effect in an Ultrathin Film
journal, October 2019


Skyrmion Logic System for Large-Scale Reversible Computation
journal, December 2019


Magnetic Skyrmion as a Nonlinear Resistive Element: A Potential Building Block for Reservoir Computing
journal, January 2018


Elimination of thermoelectric artifacts in the harmonic Hall measurement of spin-orbit torque
journal, December 2019


Mapping different skyrmion phases in double wedges of Ta/FeCoB/TaOx trilayers
journal, December 2019


Unraveling the role of dipolar versus Dzyaloshinskii-Moriya interactions in stabilizing compact magnetic skyrmions
journal, January 2020


Determination of spin torque efficiencies in heterostructures with perpendicular magnetic anisotropy
journal, April 2016


Thermally stable magnetic skyrmions in multilayer synthetic antiferromagnetic racetracks
journal, August 2016


Formation and stability of metastable skyrmionic spin structures with various topologies in an ultrathin film
journal, March 2017


Multiscale simulations of topological transformations in magnetic-skyrmion spin structures
journal, July 2017


SEMPA investigation of the Dzyaloshinskii-Moriya interaction in the single, ideally grown Co/Pt(111) interface
journal, August 2017


Skyrmions and multisublattice helical states in a frustrated chiral magnet
journal, October 2017


Magnetoentropic signatures of skyrmionic phase behavior in FeGe
journal, March 2018


Brownian motion of magnetic domain walls and skyrmions, and their diffusion constants
journal, June 2018


Nonequilibrium phases and segregation for skyrmions on periodic pinning arrays
journal, October 2018


Alternative to the topological interpretation of the transverse resistivity anomalies in SrRuO 3
journal, November 2018


Control of domain structure and magnetization reversal in thick Co/Pt multilayers
journal, January 2019


Observation of the topological Hall effect and signature of room-temperature antiskyrmions in Mn-Ni-Ga D 2 d Heusler magnets
journal, April 2019


Configurational entropy of magnetic skyrmions as an ideal gas
journal, May 2019


Spin Wave Power Flow and Caustics in Ultrathin Ferromagnets with the Dzyaloshinskii-Moriya Interaction
journal, November 2016


Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect
journal, December 2016


Nanosecond X-Ray Photon Correlation Spectroscopy on Magnetic Skyrmions
journal, August 2017


Bound States of Skyrmions and Merons near the Lifshitz Point
journal, November 2017


Quantification of Magnetic Surface and Edge States in an FeGe Nanostripe by Off-Axis Electron Holography
journal, April 2018


Competition of Dzyaloshinskii-Moriya and Higher-Order Exchange Interactions in Rh / Fe Atomic Bilayers on Ir(111)
journal, May 2018


Direct Observation of Twisted Surface skyrmions in Bulk Crystals
journal, May 2018


Skyrmion formation in a bulk chiral magnet at zero magnetic field and above room temperature
journal, December 2017


Role of La doping for topological Hall effect in epitaxial EuO films
journal, March 2018


Interface-driven topological Hall effect in SrRuO 3 -SrIrO 3 bilayer
journal, July 2016


Spin–Orbit Effects in CoFeB/MgO Heterostructures with Heavy Metal Underlayers
journal, June 2016


Multi-color imaging of magnetic Co/Pt heterostructures
text, January 2017


Skyrmions and Antiskyrmions in Quasi-Two-Dimensional Magnets
journal, September 2018


Quantum Dynamics of Skyrmions in Chiral Magnets
text, January 2017

  • Psaroudaki, Christina; Hoffman, Silas; Klinovaja, Jelena
  • American Physical Society
  • DOI: 10.5451/unibas-ep60919

An Artificial Skyrmion Platform with Robust Tunability in Synthetic Antiferromagnetic Multilayers
journal, October 2019

  • Li, Yong; Feng, Qiyuan; Li, Sihua
  • Advanced Functional Materials, Vol. 30, Issue 3
  • DOI: 10.1002/adfm.201907140

Prospects of spintronics based on 2D materials: Spintronics Based on 2D Materials
journal, April 2017

  • Feng, Yuan Ping; Shen, Lei; Yang, Ming
  • Wiley Interdisciplinary Reviews: Computational Molecular Science, Vol. 7, Issue 5
  • DOI: 10.1002/wcms.1313

Direct experimental determination of the topological winding number of skyrmions in Cu2OSeO3
journal, February 2017

  • Zhang, S. L.; van der Laan, G.; Hesjedal, T.
  • Nature Communications, Vol. 8, Issue 1
  • DOI: 10.1038/ncomms14619

Three-dimensional nanomagnetism
journal, June 2017

  • Fernández-Pacheco, Amalio; Streubel, Robert; Fruchart, Olivier
  • Nature Communications, Vol. 8, Issue 1
  • DOI: 10.1038/ncomms15756

Ferroelectrically tunable magnetic skyrmions in ultrathin oxide heterostructures
journal, November 2018


Room-temperature stabilization of antiferromagnetic skyrmions in synthetic antiferromagnets
journal, September 2019


Pinning and hysteresis in the field dependent diameter evolution of skyrmions in Pt/Co/Ir superlattice stacks
journal, November 2017


Theory of current-driven skyrmions in disordered magnets
journal, April 2018


Electrical detection of single magnetic skyrmion at room temperature
journal, May 2017

  • Tomasello, Riccardo; Ricci, Marco; Burrascano, Pietro
  • AIP Advances, Vol. 7, Issue 5
  • DOI: 10.1063/1.4975998

Potential implementation of reservoir computing models based on magnetic skyrmions
journal, May 2018

  • Bourianoff, George; Pinna, Daniele; Sitte, Matthias
  • AIP Advances, Vol. 8, Issue 5
  • DOI: 10.1063/1.5006918

Electrical field enhanced interfacial Dzyaloshinskii-Moriya interaction in MgO/Fe/Pt system
journal, September 2018

  • Zhang, W.; Zhong, H.; Zang, R.
  • Applied Physics Letters, Vol. 113, Issue 12
  • DOI: 10.1063/1.5050447

Tunable magnetic skyrmions in spintronic nanostructures for cellular-level magnetic neurostimulation
journal, September 2019

  • Saha, Renata; Wu, Kai; Su, Diqing
  • Journal of Physics D: Applied Physics, Vol. 52, Issue 46
  • DOI: 10.1088/1361-6463/ab39a7

A model for individual quantal nano-skyrmions
journal, May 2019


Magnetic skyrmion-based synaptic devices
journal, January 2017


The properties of isolated chiral skyrmions in thin magnetic films
journal, May 2016


Noise fluctuations and drive dependence of the skyrmion Hall effect in disordered systems
journal, September 2016


Collective transport properties of skyrmions on the depinning phase transition
journal, August 2019


Interfacial Dzyaloshinskii-Moriya interaction and chiral magnetic textures in a ferrimagnetic insulator
journal, September 2019


Spin-wave propagation in the presence of inhomogeneous Dzyaloshinskii-Moriya interactions
journal, November 2017


Pinning of magnetic skyrmions in a monolayer Co film on Pt(111): Theoretical characterization and exemplified utilization
journal, December 2017

  • Stosic, Dusan; Ludermir, Teresa B.; Milošević, Milorad V.
  • Physical Review B, Vol. 96, Issue 21
  • DOI: 10.1103/physrevb.96.214403

Origin of temperature and field dependence of magnetic skyrmion size in ultrathin nanodots
journal, February 2018


Evolution of topological skyrmions across the spin reorientation transition in Pt/Co/Ta multilayers
journal, May 2018


Creation of localized skyrmion bubbles in Co/Pt bilayers using a spin-valve nanopillar
journal, May 2018


Fluctuation-induced Néel and Bloch skyrmions at topological insulator surfaces
journal, August 2018


Nonlinear transport, dynamic ordering, and clustering for driven skyrmions on random pinning
journal, March 2019


Dynamics of topological solitons, knotted streamlines, and transport of cargo in liquid crystals
journal, May 2018


Avalanches and Criticality in Driven Magnetic Skyrmions
journal, March 2018


Current-Driven Dynamics of Magnetic Hopfions
journal, September 2019


Realization of ordered magnetic skyrmions in thin films at ambient conditions
journal, October 2019


Hybrid chiral domain walls and skyrmions in magnetic multilayers
journal, July 2018

  • Legrand, William; Chauleau, Jean-Yves; Maccariello, Davide
  • Science Advances, Vol. 4, Issue 7
  • DOI: 10.1126/sciadv.aat0415

The skyrmion-bubble transition in a ferromagnetic thin film
journal, January 2018


Long-range chiral exchange interaction in synthetic antiferromagnets
text, January 2019


Dynamical Defects in Rotating Magnetic Skyrmion Lattices
text, January 2017


Vanishing Skyrmion Hall Effect at the Angular Momentum Compensation Temperature of a Ferrimagnet
conference, September 2019

  • Hirata, Y.; Kim, D. -H.; Kim, S. K.
  • Extended Abstracts of the 2019 International Conference on Solid State Devices and Materials
  • DOI: 10.7567/ssdm.2019.n-7-02

Noncentrosymmetric Magnets Hosting Magnetic Skyrmions
journal, March 2017

  • Kanazawa, Naoya; Seki, Shinichiro; Tokura, Yoshinori
  • Advanced Materials, Vol. 29, Issue 25
  • DOI: 10.1002/adma.201603227

Current‐Induced Helicity Reversal of a Single Skyrmionic Bubble Chain in a Nanostructured Frustrated Magnet
journal, November 2019


Manipulation of Magnetization by Spin-Orbit Torque
journal, October 2018

  • Li, Yucai; Edmonds, Kevin William; Liu, Xionghua
  • Advanced Quantum Technologies, Vol. 2, Issue 1-2
  • DOI: 10.1002/qute.201800052

Observation of stable Néel skyrmions in cobalt/palladium multilayers with Lorentz transmission electron microscopy
journal, March 2017

  • Pollard, Shawn D.; Garlow, Joseph A.; Yu, Jiawei
  • Nature Communications, Vol. 8, Issue 1
  • DOI: 10.1038/ncomms14761

Interface-driven chiral magnetism and current-driven domain walls in insulating magnetic garnets
journal, April 2019


Nanoscale detection of spin wave deflection angles in permalloy
journal, January 2019

  • Groß, Felix; Träger, Nick; Förster, Johannes
  • Applied Physics Letters, Vol. 114, Issue 1
  • DOI: 10.1063/1.5074169

Skyrmion motion induced by voltage-controlled in-plane strain gradients
journal, September 2019

  • Yanes, R.; Garcia-Sanchez, F.; Luis, R. F.
  • Applied Physics Letters, Vol. 115, Issue 13
  • DOI: 10.1063/1.5119085

Tuning of interfacial perpendicular magnetic anisotropy and domain structures in magnetic thin film multilayers
journal, May 2019

  • Jaiswal, S.; Lee, K.; Langer, J.
  • Journal of Physics D: Applied Physics, Vol. 52, Issue 29
  • DOI: 10.1088/1361-6463/ab1c42

Effect of strain gradient symmetry on vortex core translation
journal, August 2019

  • Azaceta, I.; Rae, I. Wilson; Cavill, S. A.
  • Journal of Physics D: Applied Physics, Vol. 52, Issue 45
  • DOI: 10.1088/1361-6463/ab3877

Skyrmion production on demand by homogeneous DC currents
journal, September 2017

  • Everschor-Sitte, Karin; Sitte, Matthias; Valet, Thierry
  • New Journal of Physics, Vol. 19, Issue 9
  • DOI: 10.1088/1367-2630/aa8569

Measurement of interfacial Dzyaloshinskii-Moriya interaction from static domain imaging
journal, September 2019


Engineering the dynamics of topological spin textures by anisotropic spin-orbit torques
journal, January 2020


Path to collapse for an isolated Néel skyrmion
journal, June 2016


Interfacial control of Dzyaloshinskii-Moriya interaction in heavy metal/ferromagnetic metal thin film heterostructures
journal, November 2016


Ultrafast generation of skyrmionic defects with vortex beams: Printing laser profiles on magnets
journal, February 2017


Revealing the correlation between real-space structure and chiral magnetic order at the atomic scale
journal, March 2018


Micromagnetic understanding of the skyrmion Hall angle current dependence in perpendicularly magnetized ferromagnets
journal, December 2018


Current-driven skyrmion depinning in magnetic granular films
journal, March 2019


Dzyaloshinskii-Moriya interaction and spin-orbit torque at the Ir/Co interface
journal, April 2019


Stability and lifetime of antiferromagnetic skyrmions
journal, April 2019


Magnetic Radial Vortex Stabilization and Efficient Manipulation Driven by the Dzyaloshinskii-Moriya Interaction and Spin-Transfer Torque
journal, August 2016


Tuning Magnetic Chirality by Dipolar Interactions
journal, October 2019


Two-dimensional magnetic semiconductors with room Curie temperatures
journal, January 2020


Direct imaging of an inhomogeneous electric current distribution using the trajectory of magnetic half-skyrmions
journal, February 2020


Artificial Dense Lattices of Magnetic Skyrmions
journal, December 2019

  • Sapozhnikov, Maksim V.; Petrov, Yuri V.; Gusev, Nikita S.
  • Materials, Vol. 13, Issue 1
  • DOI: 10.3390/ma13010099

Nanoscale Bubble Domains and Topological Transitions in Ultrathin Ferroelectric Films
journal, October 2017


Current-driven dynamics and inhibition of the skyrmion Hall effect of ferrimagnetic skyrmions in GdFeCo films
journal, March 2018


Discrete Hall resistivity contribution from Néel skyrmions in multilayer nanodiscs
journal, October 2018

  • Zeissler, Katharina; Finizio, Simone; Shahbazi, Kowsar
  • Nature Nanotechnology, Vol. 13, Issue 12
  • DOI: 10.1038/s41565-018-0268-y

A theory on skyrmion size
journal, July 2018


Realization of zero-field skyrmions with high-density via electromagnetic manipulation in Pt/Co/Ta multilayers
journal, November 2017

  • He, Min; Peng, Licong; Zhu, Zhaozhao
  • Applied Physics Letters, Vol. 111, Issue 20
  • DOI: 10.1063/1.5001322

Encoding neural and synaptic functionalities in electron spin: A pathway to efficient neuromorphic computing
journal, December 2017

  • Sengupta, Abhronil; Roy, Kaushik
  • Applied Physics Reviews, Vol. 4, Issue 4
  • DOI: 10.1063/1.5012763

Magnetic skyrmion bubble motion driven by surface acoustic waves
journal, March 2018

  • Nepal, Rabindra; Güngördü, Utkan; Kovalev, Alexey A.
  • Applied Physics Letters, Vol. 112, Issue 11
  • DOI: 10.1063/1.5013620

Reversal of domain wall chirality with ferromagnet thickness in W/(Co)FeB/MgO systems
journal, January 2019

  • Dohi, Takaaki; DuttaGupta, Samik; Fukami, Shunsuke
  • Applied Physics Letters, Vol. 114, Issue 4
  • DOI: 10.1063/1.5084095

Tuning magnetic monopole population and mobility in unidirectional array of nanomagnets as a function of lattice parameters
journal, April 2019

  • Gonçalves, R. S.; Loreto, R. P.; de Paiva, T. S.
  • Applied Physics Letters, Vol. 114, Issue 14
  • DOI: 10.1063/1.5088219

Ultrafast spin dynamics and spintronics for ferrimagnets close to the spin compensation point (Review)
journal, September 2019


X-ray microscopy
journal, July 1965


Trochoidal antiskyrmion motion with microwave electric fields
journal, August 2019

  • Song, Chengkun; Jin, Chendong; Ma, Yunxu
  • Journal of Physics D: Applied Physics, Vol. 52, Issue 43
  • DOI: 10.1088/1361-6463/ab36d2

Ultrafast magnetodynamics with free-electron lasers
journal, January 2018

  • Malvestuto, Marco; Ciprian, Roberta; Caretta, Antonio
  • Journal of Physics: Condensed Matter, Vol. 30, Issue 5
  • DOI: 10.1088/1361-648x/aaa211

Magnetic skyrmions on a two-lane racetrack
journal, February 2017


Bilayer skyrmion dynamics on a magnetic anisotropy gradient
journal, April 2019

  • Ang, Calvin Ching Ian; Gan, Weiliang; Lew, Wen Siang
  • New Journal of Physics, Vol. 21, Issue 4
  • DOI: 10.1088/1367-2630/ab1171

Atomistic simulations of spin-lattice coupling effects on magnetomechanics in skyrmion materials
journal, October 2019


Field and temperature dependence of the skyrmion lattice phase in chiral magnet membranes
journal, January 2020


Microscopic theory of spin-orbit torques in two dimensions
journal, March 2017


Tunable Snell's law for spin waves in heterochiral magnetic films
journal, March 2018

  • Mulkers, Jeroen; Van Waeyenberge, Bartel; Milošević, Milorad V.
  • Physical Review B, Vol. 97, Issue 10
  • DOI: 10.1103/physrevb.97.104422

Wiggling skyrmion propagation under parametric pumping
journal, January 2019


Dynamical Defects in Rotating Magnetic Skyrmion Lattices
journal, May 2017


Thermal nucleation and high-resolution imaging of submicrometer magnetic bubbles in thin thulium iron garnet films with perpendicular anisotropy
journal, January 2020


Modulation of Heavy Metal/Ferromagnetic Metal Interface for High‐Performance Spintronic Devices
journal, June 2019

  • Peng, Shouzhong; Zhu, Daoqian; Zhou, Jiaqi
  • Advanced Electronic Materials, Vol. 5, Issue 8
  • DOI: 10.1002/aelm.201900134

Thermal Decay of a Single Néel Skyrmion via Helicity Slip in a Nanodisk
journal, October 2019

  • Sisodia, Naveen; Muduli, Pranaba Kishor
  • physica status solidi (RRL) – Rapid Research Letters, Vol. 14, Issue 1
  • DOI: 10.1002/pssr.201900525

Probing the pinning strength of magnetic vortex cores with sub-nanometer resolution
journal, June 2020


Thermal skyrmion diffusion used in a reshuffler device
journal, April 2019


Investigation of the Dzyaloshinskii-Moriya interaction and room temperature skyrmions in W/CoFeB/MgO thin films and microwires
journal, July 2017

  • Jaiswal, S.; Litzius, K.; Lemesh, I.
  • Applied Physics Letters, Vol. 111, Issue 2
  • DOI: 10.1063/1.4991360

Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field
journal, March 2018

  • Zhang, Senfu; Zhang, Junwei; Zhang, Qiang
  • Applied Physics Letters, Vol. 112, Issue 13
  • DOI: 10.1063/1.5021172

Frontiers of magnetic force microscopy
journal, February 2019

  • Kazakova, O.; Puttock, R.; Barton, C.
  • Journal of Applied Physics, Vol. 125, Issue 6
  • DOI: 10.1063/1.5050712

Pure spin currents in magnetically ordered insulator/normal metal heterostructures
journal, July 2018


Analytical modeling of the interaction between skyrmions and extended defects
journal, August 2019

  • González-Gómez, Leonardo; Castell-Queralt, Josep; Del-Valle, Nuria
  • Physical Review B, Vol. 100, Issue 5
  • DOI: 10.1103/physrevb.100.054440

Topological Hall and spin Hall effects in disordered skyrmionic textures
journal, February 2017

  • Ndiaye, Papa Birame; Akosa, Collins Ashu; Manchon, Aurélien
  • Physical Review B, Vol. 95, Issue 6
  • DOI: 10.1103/physrevb.95.064426

Tunable Room Temperature Magnetic Skyrmions in Ir/Fe/Co/Pt Multilayers
text, January 2016


Interface-driven topological Hall effect in SrRuO$_3$-SrIrO$_3$ bilayer
text, January 2016


Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy
text, January 2017


Magnetic skyrmion bubble motion driven by surface acoustic waves
text, January 2017


Hybrid chiral domain walls and skyrmions in magnetic multilayers
text, January 2017


Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
text, January 2018


Magnetoentropic signatures of skyrmionic phase behavior in FeGe
text, January 2018


Wiggling skyrmion propagation under parametric pumping
text, January 2018


Skyrmions and antiskyrmions in quasi-two-dimensional magnets
text, January 2018


Symmetry-Breaking Interlayer Dzyaloshinskii-Moriya Interactions in Synthetic Antiferromagnets
text, January 2018


Individual skyrmion manipulation by local magnetic field gradients
text, January 2019


Current-Driven Skyrmion Dynamics and Drive-Dependent Skyrmion Hall Effect in an Ultrathin Film
text, January 2019