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:
-
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Johannes Gutenberg Univ., Mainz (Germany)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United State)
- Max Planck Inst. for Intelligent Systems, Stuttgart (Germany)
- Johannes Gutenberg Univ., Mainz (Germany); Max Planck Inst. for Intelligent Systems, Stuttgart (Germany)
- 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. 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, and Beach, Geoffrey S. D. Mon .
"Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets". United States. doi: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}
}
Web of Science
Works referenced in this record:
Spin Transfer Torques in MnSi at Ultralow Current Densities
journal, December 2010
- Jonietz, F.; Muhlbauer, S.; Pfleiderer, C.
- Science, Vol. 330, Issue 6011
A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics
journal, January 1958
- Dzyaloshinsky, I.
- Journal of Physics and Chemistry of Solids, Vol. 4, Issue 4
Chiral magnetic order at surfaces driven by inversion asymmetry
journal, May 2007
- Bode, M.; Heide, M.; von Bergmann, K.
- Nature, Vol. 447, Issue 7141
Current-driven dynamics of chiral ferromagnetic domain walls
journal, June 2013
- Emori, Satoru; Bauer, Uwe; Ahn, Sung-Min
- Nature Materials, Vol. 12, Issue 7
Chirality-Induced Asymmetric Magnetic Nucleation in Ultrathin Microstructures
journal, July 2014
- Pizzini, S.; Vogel, J.; Rohart, S.
- Physical Review Letters, Vol. 113, Issue 4
Skyrmions on the track
journal, March 2013
- Fert, Albert; Cros, Vincent; Sampaio, João
- Nature Nanotechnology, Vol. 8, Issue 3
Current-induced skyrmion dynamics in constricted geometries
journal, September 2013
- Iwasaki, Junichi; Mochizuki, Masahito; Nagaosa, Naoto
- Nature Nanotechnology, Vol. 8, Issue 10
Skyrmion Lattice in a Chiral Magnet
journal, February 2009
- Muhlbauer, S.; Binz, B.; Jonietz, F.
- Science, Vol. 323, Issue 5916
On the theory of the domain structure of thin films of magnetically uni-axial materials
journal, July 1958
- Málek, Zdeněk; Kamberský, Vladimír
- Czechoslovak Journal of Physics, Vol. 8, Issue 4
Nucleation, stability and current-induced motion of isolated magnetic skyrmions in nanostructures
journal, October 2013
- Sampaio, J.; Cros, V.; Rohart, S.
- Nature Nanotechnology, Vol. 8, Issue 11
Chiral spin torque at magnetic domain walls
journal, June 2013
- Ryu, Kwang-Su; Thomas, Luc; Yang, See-Hun
- Nature Nanotechnology, Vol. 8, Issue 7
Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films
journal, December 2012
- Thiaville, André; Rohart, Stanislas; Jué, Émilie
- EPL (Europhysics Letters), Vol. 100, Issue 5
Universal current-velocity relation of skyrmion motion in chiral magnets
journal, February 2013
- Iwasaki, Junichi; Mochizuki, Masahito; Nagaosa, Naoto
- Nature Communications, Vol. 4, Issue 1
Skyrmion lattice in the doped semiconductor
journal, January 2010
- Münzer, W.; Neubauer, A.; Adams, T.
- Physical Review B, Vol. 81, Issue 4
Interface control of the magnetic chirality in CoFeB/MgO heterostructures with heavy-metal underlayers
journal, August 2014
- Torrejon, Jacob; Kim, Junyeon; Sinha, Jaivardhan
- Nature Communications, Vol. 5, Issue 1
Skyrmion flow near room temperature in an ultralow current density
journal, January 2012
- Yu, X. Z.; Kanazawa, N.; Zhang, W. Z.
- Nature Communications, Vol. 3, Issue 1
Spontaneous atomic-scale magnetic skyrmion lattice in two dimensions
journal, July 2011
- Heinze, Stefan; von Bergmann, Kirsten; Menzel, Matthias
- Nature Physics, Vol. 7, Issue 9
Spontaneous skyrmion ground states in magnetic metals
journal, August 2006
- Rößler, U. K.; Bogdanov, A. N.; Pfleiderer, C.
- Nature, Vol. 442, Issue 7104, p. 797-801
Enhanced spin-orbit torques in Pt/Co/Ta heterostructures
journal, November 2014
- Woo, Seonghoon; Mann, Maxwell; Tan, Aik Jun
- Applied Physics Letters, Vol. 105, Issue 21
Magnetostatic energy and magnetization process in multilayers with perpendicular anisotropy
journal, June 1992
- Shigeo Honda,
- Journal of Magnetism and Magnetic Materials, Vol. 111, Issue 3
Real-Space Observation of Helical Spin Order
journal, January 2006
- Uchida, Masaya; Onose, Yoshinori; Matsui, Yoshio
- Science, Vol. 311, Issue 5759
Role of B diffusion in the interfacial Dzyaloshinskii-Moriya interaction in nanowires
journal, January 2015
- Lo Conte, R.; Martinez, E.; Hrabec, A.
- Physical Review B, Vol. 91, Issue 1
Near room-temperature formation of a skyrmion crystal in thin-films of the helimagnet FeGe
journal, December 2010
- Yu, X. Z.; Kanazawa, N.; Onose, Y.
- Nature Materials, Vol. 10, Issue 2
Spin Hall torque magnetometry of Dzyaloshinskii domain walls
journal, November 2014
- Emori, Satoru; Martinez, Eduardo; Lee, Kyung-Jin
- Physical Review B, Vol. 90, Issue 18
Anisotropic Superexchange Interaction and Weak Ferromagnetism
journal, October 1960
- Moriya, Tôru
- Physical Review, Vol. 120, Issue 1
Dzyaloshinskii-Moriya interaction accounting for the orientation of magnetic domains in ultrathin films: Fe/W(110)
journal, October 2008
- Heide, M.; Bihlmayer, G.; Blügel, S.
- Physical Review B, Vol. 78, Issue 14
Blowing magnetic skyrmion bubbles
journal, June 2015
- Jiang, W.; Upadhyaya, P.; Zhang, W.
- Science, Vol. 349, Issue 6245
Emergent electrodynamics of skyrmions in a chiral magnet
journal, February 2012
- Schulz, T.; Ritz, R.; Bauer, A.
- Nature Physics, Vol. 8, Issue 4
Real-space observation of a two-dimensional skyrmion crystal
journal, June 2010
- Yu, X. Z.; Onose, Y.; Kanazawa, N.
- Nature, Vol. 465, Issue 7300
Role of Anisotropic Exchange Interactions in Determining the Properties of Spin-Glasses
journal, June 1980
- Fert, A.; Levy, Peter M.
- Physical Review Letters, Vol. 44, Issue 23
Works referencing / citing this record:
Tunable room-temperature magnetic skyrmions in Ir/Fe/Co/Pt multilayers
journal, July 2017
- Soumyanarayanan, Anjan; Raju, M.; Gonzalez Oyarce, A. L.
- Nature Materials, Vol. 16, Issue 9
Effect of interfacial intermixing on the Dzyaloshinskii-Moriya interaction in Pt/Co/Pt
journal, February 2017
- Wells, Adam W. J.; Shepley, Philippa M.; Marrows, Christopher H.
- Physical Review B, Vol. 95, Issue 5
A theory on skyrmion size
journal, July 2018
- Wang, X. S.; Yuan, H. Y.; Wang, X. R.
- Communications Physics, Vol. 1, Issue 1
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
Pinning and hysteresis in the field dependent diameter evolution of skyrmions in Pt/Co/Ir superlattice stacks
journal, November 2017
- Zeissler, K.; Mruczkiewicz, M.; Finizio, S.
- Scientific Reports, Vol. 7, Issue 1
The skyrmion-bubble transition in a ferromagnetic thin film
journal, January 2018
- Bernand-Mantel, Anne; Camosi, Lorenzo; Wartelle, Alexis
- SciPost Physics, Vol. 4, Issue 5
Direct current-tunable MHz to multi-GHz skyrmion generation and control
journal, July 2019
- Cheghabouri, Arash Mousavi; Onbasli, Mehmet C.
- Scientific Reports, Vol. 9, Issue 1
Effect of inter-layer spin diffusion on skyrmion motion in magnetic multilayers
journal, July 2019
- Lepadatu, Serban
- Scientific Reports, Vol. 9, Issue 1
Robust Formation of Ultrasmall Room-Temperature Neél Skyrmions in Amorphous Ferrimagnets from Atomistic Simulations
journal, July 2019
- Ma, Chung Ting; Xie, Yunkun; Sheng, Howard
- Scientific Reports, Vol. 9, Issue 1
Quantification of Magnetic Surface and Edge States in an FeGe Nanostripe by Off-Axis Electron Holography
journal, April 2018
- Song, Dongsheng; Li, Zi-An; Caron, Jan
- Physical Review Letters, Vol. 120, Issue 16
Spin–Orbit Effects in CoFeB/MgO Heterostructures with Heavy Metal Underlayers
journal, June 2016
- Torrejon, Jacob; Kim, Junyeon; Sinha, Jaivardhan
- SPIN, Vol. 06, Issue 02
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
Tunable room-temperature magnetic skyrmions in Ir/Fe/Co/Pt multilayers
journal, July 2017
- Soumyanarayanan, Anjan; Raju, M.; Gonzalez Oyarce, A. L.
- Nature Materials, Vol. 16, Issue 9
Current-induced viscoelastic topological unwinding of metastable skyrmion strings
journal, November 2017
- Kagawa, Fumitaka; Oike, Hiroshi; Koshibae, Wataru
- Nature Communications, Vol. 8, Issue 1
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
Pinning and hysteresis in the field dependent diameter evolution of skyrmions in Pt/Co/Ir superlattice stacks
journal, November 2017
- Zeissler, K.; Mruczkiewicz, M.; Finizio, S.
- Scientific Reports, Vol. 7, Issue 1
Direct current-tunable MHz to multi-GHz skyrmion generation and control
journal, July 2019
- Cheghabouri, Arash Mousavi; Onbasli, Mehmet C.
- Scientific Reports, Vol. 9, Issue 1
Effect of inter-layer spin diffusion on skyrmion motion in magnetic multilayers
journal, July 2019
- Lepadatu, Serban
- Scientific Reports, Vol. 9, Issue 1
Robust Formation of Ultrasmall Room-Temperature Neél Skyrmions in Amorphous Ferrimagnets from Atomistic Simulations
journal, July 2019
- Ma, Chung Ting; Xie, Yunkun; Sheng, Howard
- Scientific Reports, Vol. 9, Issue 1
A theory on skyrmion size
journal, July 2018
- Wang, X. S.; Yuan, H. Y.; Wang, X. R.
- Communications Physics, Vol. 1, Issue 1
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
Direct measurement of interfacial Dzyaloshinskii-Moriya interaction in heterostructures with a scanning NV magnetometer
journal, August 2016
- Gross, I.; Martínez, L. J.; Tetienne, J. -P.
- Physical Review B, Vol. 94, Issue 6
Effect of interfacial intermixing on the Dzyaloshinskii-Moriya interaction in Pt/Co/Pt
journal, February 2017
- Wells, Adam W. J.; Shepley, Philippa M.; Marrows, Christopher H.
- Physical Review B, Vol. 95, Issue 5
Element-specific soft x-ray spectroscopy, scattering, and imaging studies of the skyrmion-hosting compound
journal, April 2019
- Ukleev, V.; Yamasaki, Y.; Morikawa, D.
- Physical Review B, Vol. 99, Issue 14
Quantification of Magnetic Surface and Edge States in an FeGe Nanostripe by Off-Axis Electron Holography
journal, April 2018
- Song, Dongsheng; Li, Zi-An; Caron, Jan
- Physical Review Letters, Vol. 120, Issue 16
Role of La doping for topological Hall effect in epitaxial EuO films
journal, March 2018
- Yun, Yu; Ma, Yang; Su, Tang
- Physical Review Materials, Vol. 2, Issue 3
Spin–Orbit Effects in CoFeB/MgO Heterostructures with Heavy Metal Underlayers
journal, June 2016
- Torrejon, Jacob; Kim, Junyeon; Sinha, Jaivardhan
- SPIN, Vol. 06, Issue 02
The skyrmion-bubble transition in a ferromagnetic thin film
journal, January 2018
- Bernand-Mantel, Anne; Camosi, Lorenzo; Wartelle, Alexis
- SciPost Physics, Vol. 4, Issue 5
Edge states and skyrmion dynamics in nanostripes of frustrated magnets
journal, February 2017
- Leonov, A. O.; Mostovoy, M.
- Nature Communications, Vol. 8, Issue 1
Current-induced shuttlecock-like movement of non-axisymmetric chiral skyrmions
journal, January 2020
- Murooka, Remi; Leonov, Andrey O.; Inoue, Katsuya
- Scientific Reports, Vol. 10, Issue 1
Skyrmion-based artificial synapses for neuromorphic computing
journal, March 2020
- Song, Kyung Mee; Jeong, Jae-Seung; Pan, Biao
- Nature Electronics, Vol. 3, Issue 3
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
Current-Driven Dynamics of Frustrated Skyrmions in a Synthetic Antiferromagnetic Bilayer
journal, April 2019
- Xia, Jing; Zhang, Xichao; Ezawa, Motohiko
- Physical Review Applied, Vol. 11, Issue 4
Thermally stable magnetic skyrmions in multilayer synthetic antiferromagnetic racetracks
journal, August 2016
- Zhang, Xichao; Ezawa, Motohiko; Zhou, Yan
- Physical Review B, Vol. 94, Issue 6
Skyrmions and multisublattice helical states in a frustrated chiral magnet
journal, October 2017
- Yuan, H. Y.; Gomonay, O.; Kläui, Mathias
- Physical Review B, Vol. 96, Issue 13
Skyrmions with Attractive Interactions in an Ultrathin Magnetic Film
journal, October 2016
- Rózsa, Levente; Deák, András; Simon, Eszter
- Physical Review Letters, Vol. 117, Issue 15
Significant Strain-Induced Orbital Reconstruction and Strong Interfacial Magnetism in TiNi(Nb)/Ferromagnet/Oxide Heterostructures via Oxygen Manipulation
journal, July 2018
- Feng, Chun; Wang, Shiru; Yin, Li
- Advanced Functional Materials, Vol. 28, Issue 37
Observation of Robust Néel Skyrmions in Metallic PtMnGa
journal, November 2019
- Srivastava, Abhay K.; Devi, Parul; Sharma, Ankit K.
- Advanced Materials, Vol. 32, Issue 7
Nanoscale magnetic skyrmions in metallic films and multilayers: a new twist for spintronics
journal, June 2016
- Wiesendanger, Roland
- Nature Reviews Materials, Vol. 1, Issue 7
Magnetic skyrmions: advances in physics and potential applications
journal, June 2017
- Fert, Albert; Reyren, Nicolas; Cros, Vincent
- Nature Reviews Materials, Vol. 2, Issue 7
Magnetic antiskyrmions above room temperature in tetragonal Heusler materials
journal, August 2017
- Nayak, Ajaya K.; Kumar, Vivek; Ma, Tianping
- Nature, Vol. 548, Issue 7669
Chirality-driven orbital magnetic moments as a new probe for topological magnetic structures
journal, December 2016
- dos Santos Dias, Manuel; Bouaziz, Juba; Bouhassoune, Mohammed
- Nature Communications, Vol. 7, Issue 1
Electric control of skyrmions
journal, November 2016
- Rosch, Achim
- Nature Nanotechnology, Vol. 12, Issue 2
Direct observation of the skyrmion Hall effect
journal, September 2016
- Jiang, Wanjun; Zhang, Xichao; Yu, Guoqiang
- Nature Physics, Vol. 13, Issue 2
Squirming motion of baby skyrmions in nematic fluids
journal, September 2017
- Ackerman, Paul J.; Boyle, Timothy; Smalyukh, Ivan I.
- Nature Communications, Vol. 8, Issue 1
Manipulation of skyrmion motion by magnetic field gradients
journal, May 2018
- Zhang, S. L.; Wang, W. W.; Burn, D. M.
- Nature Communications, Vol. 9, Issue 1
Universality of defect-skyrmion interaction profiles
journal, October 2018
- Lima Fernandes, Imara; Bouaziz, Juba; Blügel, Stefan
- Nature Communications, Vol. 9, Issue 1
The evolution of skyrmions in Ir/Fe/Co/Pt multilayers and their topological Hall signature
journal, March 2019
- Raju, M.; Yagil, A.; Soumyanarayanan, Anjan
- Nature Communications, Vol. 10, Issue 1
Dynamics of the Bloch point in an asymmetric permalloy disk
journal, February 2019
- Im, Mi-Young; Han, Hee-Sung; Jung, Min-Seung
- Nature Communications, Vol. 10, Issue 1
Isolated zero field sub-10 nm skyrmions in ultrathin Co films
journal, August 2019
- Meyer, Sebastian; Perini, Marco; von Malottki, Stephan
- Nature Communications, Vol. 10, Issue 1
Long-range chiral exchange interaction in synthetic antiferromagnets
journal, June 2019
- Han, Dong-Soo; Lee, Kyujoon; Hanke, Jan-Philipp
- Nature Materials, Vol. 18, Issue 7
Symmetry-breaking interlayer Dzyaloshinskii–Moriya interactions in synthetic antiferromagnets
journal, June 2019
- Fernández-Pacheco, Amalio; Vedmedenko, Elena; Ummelen, Fanny
- Nature Materials, Vol. 18, Issue 7
Transformation between meron and skyrmion topological spin textures in a chiral magnet
journal, December 2018
- Yu, X. Z.; Koshibae, W.; Tokunaga, Y.
- Nature, Vol. 564, Issue 7734
Inertia-driven resonant excitation of a magnetic skyrmion
journal, October 2017
- Shiino, Takayuki; Kim, Kab-Jin; Lee, Ki-Suk
- Scientific Reports, Vol. 7, Issue 1
Theory of isolated magnetic skyrmions: From fundamentals to room temperature applications
journal, March 2018
- Büttner, Felix; Lemesh, Ivan; Beach, Geoffrey S. D.
- Scientific Reports, Vol. 8, Issue 1
Composite topological structure of domain walls in synthetic antiferromagnets
journal, October 2018
- Kolesnikov, A. G.; Plotnikov, V. S.; Pustovalov, E. V.
- Scientific Reports, Vol. 8, Issue 1
Observation of magnetic skyrmions in unpatterned symmetric multilayers at room temperature and zero magnetic field
journal, March 2019
- Brandão, J.; Dugato, D. A.; Seeger, R. L.
- Scientific Reports, Vol. 9, Issue 1
Deterministic creation and deletion of a single magnetic skyrmion observed by direct time-resolved X-ray microscopy
journal, May 2018
- Woo, Seonghoon; Song, Kyung Mee; Zhang, Xichao
- Nature Electronics, Vol. 1, Issue 5
Creation of artificial skyrmions and antiskyrmions by anisotropy engineering
journal, August 2016
- Zhang, S.; Petford-Long, A. K.; Phatak, C.
- Scientific Reports, Vol. 6, Issue 1
Voltage controlled core reversal of fixed magnetic skyrmions without a magnetic field
journal, August 2016
- Bhattacharya, Dhritiman; Al-Rashid, Md Mamun; Atulasimha, Jayasimha
- Scientific Reports, Vol. 6, Issue 1
Efficient skyrmion transport mediated by a voltage controlled magnetic anisotropy gradient
journal, January 2018
- Wang, Xuan; Gan, W. L.; Martinez, J. C.
- Nanoscale, Vol. 10, Issue 2
Controlled modification of skyrmion information in a three-terminal racetrack memory
journal, January 2019
- Wang, Kang; Qian, Lijuan; Ying, See-Chen
- Nanoscale, Vol. 11, Issue 14
Accelerating, guiding, and compressing skyrmions by defect rails
journal, January 2019
- Castell-Queralt, Josep; González-Gómez, Leonardo; Del-Valle, Nuria
- Nanoscale, Vol. 11, Issue 26
Multi-color imaging of magnetic Co/Pt heterostructures
journal, January 2017
- Willems, Felix; von Korff Schmising, Clemens; Weder, David
- Structural Dynamics, Vol. 4, Issue 1
Controlled creation of nanometric skyrmions using external magnetic fields
journal, August 2017
- Mochizuki, Masahito
- Applied Physics Letters, Vol. 111, Issue 9
A repulsive skyrmion chain as a guiding track for a racetrack memory
journal, November 2018
- Suess, D.; Vogler, C.; Bruckner, F.
- AIP Advances, Vol. 8, Issue 11
Dzyaloshinskii–Moriya interaction in Pt/Co/Ir and Pt/Co/Ru multilayer films
journal, March 2018
- Khadka, Durga; Karayev, Sabit; Huang, S. X.
- Journal of Applied Physics, Vol. 123, Issue 12
Skyrmion states in thin confined polygonal nanostructures
journal, March 2018
- Pepper, Ryan Alexander; Beg, Marijan; Cortés-Ortuño, David
- Journal of Applied Physics, Vol. 123, Issue 9
Stray field signatures of Néel textured skyrmions in Ir/Fe/Co/Pt multilayer films
journal, May 2018
- Yagil, A.; Almoalem, A.; Soumyanarayanan, Anjan
- Applied Physics Letters, Vol. 112, Issue 19
X-ray ptychography on low-dimensional hard-condensed matter materials
journal, March 2019
- Shi, Xiaowen; Burdet, Nicolas; Chen, Bo
- Applied Physics Reviews, Vol. 6, Issue 1
Magnetoelectric coupling and the manipulation of magnetic Bloch skyrmions
journal, September 2018
- Wang, Zidong; Ma, Zhao; Grimson, Malcolm J.
- Applied Physics Letters, Vol. 113, Issue 10
Dzyaloshinskii-Moriya interaction at disordered interfaces from ab initio theory: Robustness against intermixing and tunability through dusting
journal, December 2018
- Zimmermann, Bernd; Legrand, William; Maccariello, Davide
- Applied Physics Letters, Vol. 113, Issue 23
Enhanced spin–orbit torque via interface engineering in Pt/CoFeB/MgO heterostructures
journal, March 2019
- Lee, Hae-Yeon; Kim, Sanghoon; Park, June-Young
- APL Materials, Vol. 7, Issue 3
Route to form skyrmions in soft magnetic films
journal, August 2019
- Navas, D.; Verba, R. V.; Hierro-Rodriguez, A.
- APL Materials, Vol. 7, Issue 8
Magnetic domain size tuning in asymmetric Pd/Co/W/Pd multilayers with perpendicular magnetic anisotropy
journal, October 2019
- Dugato, D. A.; Brandão, J.; Seeger, R. L.
- Applied Physics Letters, Vol. 115, Issue 18
Launching a new dimension with 3D magnetic nanostructures
journal, January 2020
- Fischer, Peter; Sanz-Hernández, Dédalo; Streubel, Robert
- APL Materials, Vol. 8, Issue 1
Interfacial Dzyaloshinskii-Moriya interaction between ferromagnetic insulator and heavy metal
journal, February 2020
- Xia, Siyu; Zhang, Sheng; Luan, Zhongzhi
- Applied Physics Letters, Vol. 116, Issue 5
Collective spin excitations of helices and magnetic skyrmions: review and perspectives of magnonics in non-centrosymmetric magnets
journal, June 2017
- Garst, Markus; Waizner, Johannes; Grundler, Dirk
- Journal of Physics D: Applied Physics, Vol. 50, Issue 29
In situ Kerr and harmonic measurement in determining current-induced effective fields in MgO/CoFeB/Ta
journal, February 2018
- Wong, Q. Y.; Gan, W. L.; Luo, F. L.
- Journal of Physics D: Applied Physics, Vol. 51, Issue 11
Coupling of the skyrmion velocity to its breathing mode in periodically notched nanotracks
journal, November 2018
- Leliaert, J.; Gypens, P.; Milošević, M. V.
- Journal of Physics D: Applied Physics, Vol. 52, Issue 2
Strain-mediated electric manipulation of magnetic skyrmion and other topological states in geometric confined nanodiscs
journal, October 2019
- Mehmood, Nasir; Song, Xiao; Tian, Guo
- Journal of Physics D: Applied Physics, Vol. 53, Issue 1
Thermal creep and the skyrmion Hall angle in driven skyrmion crystals
journal, December 2018
- Reichhardt, C.; Reichhardt, C. J. O.
- Journal of Physics: Condensed Matter, Vol. 31, Issue 7
A sum rule of uniaxial anisotropy and external magnetic field for formation of Néel-type skyrmion lattices in two-dimensional ferromagnets
journal, March 2019
- Liu, Zhaosen; Ian, Hou
- Journal of Physics: Condensed Matter, Vol. 31, Issue 21
Skyrmion-electronics: writing, deleting, reading and processing magnetic skyrmions toward spintronic applications
journal, January 2020
- Zhang, Xichao; Zhou, Yan; Mee Song, Kyung
- Journal of Physics: Condensed Matter, Vol. 32, Issue 14
Edge instabilities and skyrmion creation in magnetic layers
journal, June 2016
- Müller, Jan; Rosch, Achim; Garst, Markus
- New Journal of Physics, Vol. 18, Issue 6
Motion of skyrmions in nanowires driven by magnonic momentum-transfer forces
journal, June 2017
- Zhang, Xichao; Müller, Jan; Xia, Jing
- New Journal of Physics, Vol. 19, Issue 6
Collective magnetic skyrmion gyrotropic modes in a dot chain
journal, March 2018
- Gareeva, Zukhra V.; Guslienko, Konstantin Y.
- Journal of Physics Communications, Vol. 2, Issue 3
Modeling the Shape of Axisymmetric Skyrmions in Magnetic Multilayers
journal, December 2018
- Legrand, William; Ronceray, Nathan; Reyren, Nicolas
- Physical Review Applied, Vol. 10, Issue 6
Geometrically Tailored Skyrmions at Zero Magnetic Field in Multilayered Nanostructures
journal, February 2019
- Ho, Pin; Tan, Anthony K. C.; Goolaup, S.
- Physical Review Applied, Vol. 11, Issue 2
Walker Breakdown with a Twist: Dynamics of Multilayer Domain Walls and Skyrmions Driven by Spin-Orbit Torque
journal, October 2019
- Lemesh, Ivan; Beach, Geoffrey S. D.
- Physical Review Applied, Vol. 12, Issue 4
Paving Spin-Wave Fibers in Magnonic Nanocircuits Using Spin-Orbit Torque
journal, May 2017
- Xing, Xiangjun; Pong, Philip W. T.; Åkerman, J.
- Physical Review Applied, Vol. 7, Issue 5
Skyrmion Gas Manipulation for Probabilistic Computing
journal, June 2018
- Pinna, D.; Abreu Araujo, F.; Kim, J. -V.
- Physical Review Applied, Vol. 9, Issue 6
Surface pinning and triggered unwinding of skyrmions in a cubic chiral magnet
journal, July 2019
- Milde, Peter; Neuber, Erik; Bauer, Andreas
- Physical Review B, Vol. 100, Issue 2
Skyrmion relaxation dynamics in the presence of quenched disorder
journal, July 2019
- Brown, Barton L.; Täuber, Uwe C.; Pleimling, Michel
- Physical Review B, Vol. 100, Issue 2
Dynamics of an antiferromagnetic skyrmion in a racetrack with a defect
journal, October 2019
- Liang, Xue; Zhao, Guoping; Shen, Laichuan
- Physical Review B, Vol. 100, Issue 14
Chiral edge currents for ac-driven skyrmions in confined pinning geometries
journal, November 2019
- Reichhardt, C.; Reichhardt, C. J. O.
- Physical Review B, Vol. 100, Issue 17
Generation and Hall effect of skyrmions enabled using nonmagnetic point contacts
journal, November 2019
- Wang, Zidong; Zhang, Xichao; Xia, Jing
- Physical Review B, Vol. 100, Issue 18
Field-sweep-rate and time dependence of transverse resistivity anomalies in ultrathin films
journal, January 2020
- Kan, Daisuke; Moriyama, Takahiro; Shimakawa, Yuichi
- Physical Review B, Vol. 101, Issue 1
Magnus-induced dynamics of driven skyrmions on a quasi-one-dimensional periodic substrate
journal, September 2016
- Reichhardt, C.; Reichhardt, C. J. Olson
- Physical Review B, Vol. 94, Issue 9
Mechanism and activation energy of magnetic skyrmion annihilation obtained from minimum energy path calculations
journal, November 2016
- Lobanov, Igor S.; Jónsson, Hannes; Uzdin, Valery M.
- Physical Review B, Vol. 94, Issue 17
Tailoring magnetic energies to form dipole skyrmions and skyrmion lattices
journal, January 2017
- Montoya, S. A.; Couture, S.; Chess, J. J.
- Physical Review B, Vol. 95, Issue 2
Spin excitation spectrum in a magnetic nanodot with continuous transitions between the vortex, Bloch-type skyrmion, and Néel-type skyrmion states
journal, March 2017
- Mruczkiewicz, M.; Krawczyk, M.; Guslienko, K. Y.
- Physical Review B, Vol. 95, Issue 9
Fluctuations and noise signatures of driven magnetic skyrmions
journal, August 2017
- Díaz, Sebastián A.; Reichhardt, C. J. O.; Arovas, Daniel P.
- Physical Review B, Vol. 96, Issue 8
Direct experimental determination of spiral spin structures via the dichroism extinction effect in resonant elastic soft x-ray scattering
journal, September 2017
- Zhang, S. L.; van der Laan, G.; Hesjedal, T.
- Physical Review B, Vol. 96, Issue 9
Chiral skyrmions in an anisotropy gradient
journal, July 2018
- Tomasello, R.; Komineas, S.; Siracusano, G.
- Physical Review B, Vol. 98, Issue 2
Topological Hall effect for electron scattering on nanoscale skyrmions in external magnetic field
journal, December 2018
- Denisov, K. S.; Rozhansky, I. V.; Potkina, M. N.
- Physical Review B, Vol. 98, Issue 21
Chiral magnetic skyrmions with arbitrary topological charge
journal, February 2019
- Rybakov, Filipp N.; Kiselev, Nikolai S.
- Physical Review B, Vol. 99, Issue 6
Magnetic domain wall skyrmions
journal, May 2019
- Cheng, Ran; Li, Maxwell; Sapkota, Arjun
- Physical Review B, Vol. 99, Issue 18
Disordering, clustering, and laning transitions in particle systems with dispersion in the Magnus term
journal, January 2019
- Reichhardt, C. J. O.; Reichhardt, C.
- Physical Review E, Vol. 99, Issue 1
Static and Dynamical Properties of Antiferromagnetic Skyrmions in the Presence of Applied Current and Temperature
journal, April 2016
- Barker, Joseph; Tretiakov, Oleg A.
- Physical Review Letters, Vol. 116, Issue 14
Skyrmions at the Edge: Confinement Effects in
journal, November 2016
- Hagemeister, Julian; Iaia, Davide; Vedmedenko, Elena Y.
- Physical Review Letters, Vol. 117, Issue 20
Dzyaloshinskii-Moriya Interaction across an Antiferromagnet-Ferromagnet Interface
journal, July 2017
- Ma, Xin; Yu, Guoqiang; Razavi, Seyed A.
- Physical Review Letters, Vol. 119, Issue 2
Helimagnon Resonances in an Intrinsic Chiral Magnonic Crystal
journal, December 2017
- Weiler, Mathias; Aqeel, Aisha; Mostovoy, Maxim
- Physical Review Letters, Vol. 119, Issue 23
Laser-Induced Skyrmion Writing and Erasing in an Ultrafast Cryo-Lorentz Transmission Electron Microscope
journal, March 2018
- Berruto, G.; Madan, I.; Murooka, Y.
- Physical Review Letters, Vol. 120, Issue 11
Interfacial Dzyaloshinskii-Moriya Interaction: Effect of Band Filling and Correlation with Spin Mixing Conductance
journal, April 2018
- Ma, Xin; Yu, Guoqiang; Tang, Chi
- Physical Review Letters, Vol. 120, Issue 15
Precipitating ordered skyrmion lattices from helical spaghetti and granular powders
journal, January 2019
- Gilbert, Dustin A.; Grutter, Alexander J.; Neves, Paul M.
- Physical Review Materials, Vol. 3, Issue 1
Determination of crystallographic chirality of MnSi thin film grown on Si (111) substrate
journal, January 2020
- Morikawa, Daisuke; Yamasaki, Yuichi; Kanazawa, Naoya
- Physical Review Materials, Vol. 4, Issue 1
Quantum Skyrmions in Frustrated Ferromagnets
journal, December 2019
- Lohani, Vivek; Hickey, Ciarán; Masell, Jan
- Physical Review X, Vol. 9, Issue 4
Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
journal, September 2019
- Manchon, A.; Železný, J.; Miron, I. M.
- Reviews of Modern Physics, Vol. 91, Issue 3
New magnetic phase of the chiral skyrmion material Cu 2 OSeO 3
journal, September 2018
- Qian, Fengjiao; Bannenberg, Lars J.; Wilhelm, Heribert
- Science Advances, Vol. 4, Issue 9