Boundary twists, instabilities, and creation of skyrmions and antiskyrmions
Abstract
We formulate and study the general boundary conditions dictating the magnetization profile in the vicinity of an interface between magnets with dissimilar properties. We show that in general case the boundary conditions lead to the magnetization profile corresponding to the Néel, Bloch, or intermediate twist. We explore how such twists can be utilized for creation of skyrmions and antiskyrmions, e.g., in a view of magnetic memory applications. To this end, we study various scenarios of how skyrmions and antiskyrmions can be created from interface magnetization twists due to local instabilities. We also show that a judicious choice of Dzyaloshinskii-Moriya tensor (hence a carefully designed material) can lead to local instabilities generating certain types of skyrmions or antiskyrmions. The local instabilities are shown to appear in solutions of the Bogoliubov-de-Gennes equations describing ellipticity of magnon modes bound to interfaces. In one considered scenario, a skyrmion-antiskyrmion pair can be created due to instabilities at an interface between materials with properly engineered Dzyaloshinskii-Moriya interactions. Furthermore, we use micromagnetics simulations to confirm our analytical predictions.
- Authors:
-
- Univ. of Nebraska, Lincoln, NE (United States)
- Publication Date:
- Research Org.:
- Univ. of Nebraska, Lincoln, Lincoln, NE (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- OSTI Identifier:
- 1487435
- Alternate Identifier(s):
- OSTI ID: 1487183
- Grant/Contract Number:
- SC0014189
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Materials
- Additional Journal Information:
- Journal Volume: 2; Journal Issue: 12; Journal ID: ISSN 2475-9953
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Raeliarijaona, Aldo, Nepal, Rabindra, and Kovalev, Alexey A. Boundary twists, instabilities, and creation of skyrmions and antiskyrmions. United States: N. p., 2018.
Web. doi:10.1103/PhysRevMaterials.2.124401.
Raeliarijaona, Aldo, Nepal, Rabindra, & Kovalev, Alexey A. Boundary twists, instabilities, and creation of skyrmions and antiskyrmions. United States. doi:10.1103/PhysRevMaterials.2.124401.
Raeliarijaona, Aldo, Nepal, Rabindra, and Kovalev, Alexey A. Mon .
"Boundary twists, instabilities, and creation of skyrmions and antiskyrmions". United States. doi:10.1103/PhysRevMaterials.2.124401. https://www.osti.gov/servlets/purl/1487435.
@article{osti_1487435,
title = {Boundary twists, instabilities, and creation of skyrmions and antiskyrmions},
author = {Raeliarijaona, Aldo and Nepal, Rabindra and Kovalev, Alexey A.},
abstractNote = {We formulate and study the general boundary conditions dictating the magnetization profile in the vicinity of an interface between magnets with dissimilar properties. We show that in general case the boundary conditions lead to the magnetization profile corresponding to the Néel, Bloch, or intermediate twist. We explore how such twists can be utilized for creation of skyrmions and antiskyrmions, e.g., in a view of magnetic memory applications. To this end, we study various scenarios of how skyrmions and antiskyrmions can be created from interface magnetization twists due to local instabilities. We also show that a judicious choice of Dzyaloshinskii-Moriya tensor (hence a carefully designed material) can lead to local instabilities generating certain types of skyrmions or antiskyrmions. The local instabilities are shown to appear in solutions of the Bogoliubov-de-Gennes equations describing ellipticity of magnon modes bound to interfaces. In one considered scenario, a skyrmion-antiskyrmion pair can be created due to instabilities at an interface between materials with properly engineered Dzyaloshinskii-Moriya interactions. Furthermore, we use micromagnetics simulations to confirm our analytical predictions.},
doi = {10.1103/PhysRevMaterials.2.124401},
journal = {Physical Review Materials},
number = 12,
volume = 2,
place = {United States},
year = {2018},
month = {12}
}
Free Publicly Available Full Text
Publisher's Version of Record
Other availability
Search WorldCat to find libraries that may hold this journal
Cited by: 1 work
Citation information provided by
Web of Science
Web of Science
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics
journal, January 1958
- Dzyaloshinsky, I.
- Journal of Physics and Chemistry of Solids, Vol. 4, Issue 4
Edge-mediated skyrmion chain and its collective dynamics in a confined geometry
journal, October 2015
- Du, Haifeng; Che, Renchao; Kong, Lingyao
- Nature Communications, Vol. 6, Issue 1
Towards control of the size and helicity of skyrmions in helimagnetic alloys by spin–orbit coupling
journal, September 2013
- Shibata, K.; Yu, X. Z.; Hara, T.
- Nature Nanotechnology, Vol. 8, Issue 10
The design and verification of MuMax3
journal, October 2014
- Vansteenkiste, Arne; Leliaert, Jonathan; Dvornik, Mykola
- AIP Advances, Vol. 4, Issue 10
Effects of spatially engineered Dzyaloshinskii-Moriya interaction in ferromagnetic films
journal, April 2017
- Mulkers, Jeroen; Van Waeyenberge, Bartel; Milošević, Milorad V.
- Physical Review B, Vol. 95, Issue 14
Discrete helicoidal states in chiral magnetic thin films
journal, December 2013
- Wilson, M. N.; Karhu, E. A.; Lake, D. P.
- Physical Review B, Vol. 88, Issue 21
Thermodynamically stable magnetic vortex states in magnetic crystals
journal, December 1994
- Bogdanov, A.; Hubert, A.
- Journal of Magnetism and Magnetic Materials, Vol. 138, Issue 3
Compact merons and skyrmions in thin chiral magnetic films
journal, March 2011
- Ezawa, Motohiko
- Physical Review B, Vol. 83, Issue 10
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
Chiral Symmetry Breaking in Magnetic Thin Films and Multilayers
journal, June 2001
- Bogdanov, A. N.; Rößler, U. K.
- Physical Review Letters, Vol. 87, Issue 3
New Boundary-Driven Twist States in Systems with Broken Spatial Inversion Symmetry
journal, September 2017
- Hals, Kjetil M. D.; Everschor-Sitte, Karin
- Physical Review Letters, Vol. 119, Issue 12
Dynamics of an Insulating Skyrmion under a Temperature Gradient
journal, August 2013
- Kong, Lingyao; Zang, Jiadong
- Physical Review Letters, Vol. 111, Issue 6
Multiferroicity and skyrmions carrying electric polarization in GaV 4 S 8
journal, November 2015
- Ruff, Eugen; Widmann, Sebastian; Lunkenheimer, Peter
- Science Advances, Vol. 1, Issue 10
Skyrmion fractionalization and merons in chiral magnets with easy-plane anisotropy
journal, June 2015
- Lin, Shi-Zeng; Saxena, Avadh; Batista, Cristian D.
- Physical Review B, Vol. 91, Issue 22
Electric-field control of anomalous and topological Hall effects in oxide bilayer thin films
journal, January 2018
- Ohuchi, Yuki; Matsuno, Jobu; Ogawa, Naoki
- Nature Communications, Vol. 9, Issue 1
Writing skyrmions with a magnetic dipole
journal, September 2018
- Garanin, Dmitry A.; Capic, Daniel; Zhang, Senfu
- Journal of Applied Physics, Vol. 124, Issue 11
Topological properties and dynamics of magnetic skyrmions
journal, December 2013
- Nagaosa, Naoto; Tokura, Yoshinori
- Nature Nanotechnology, Vol. 8, Issue 12
Controlling the Dzyaloshinskii-Moriya interaction to alter the chiral link between structure and magnetism for
journal, May 2015
- Siegfried, S. -A.; Altynbaev, E. V.; Chubova, N. M.
- Physical Review B, Vol. 91, Issue 18
Skyrmion–Anti-Skyrmion Pair Creation by in-Plane Currents
journal, June 2017
- Stier, Martin; Häusler, Wolfgang; Posske, Thore
- Physical Review Letters, Vol. 118, Issue 26
Dzyaloshinsky–Moriya interactions induced by symmetry breaking at a surface
journal, March 1998
- Crépieux, A.; Lacroix, C.
- Journal of Magnetism and Magnetic Materials, Vol. 182, Issue 3
Magnetic skyrmion logic gates: conversion, duplication and merging of skyrmions
journal, March 2015
- Zhang, Xichao; Ezawa, Motohiko; Zhou, Yan
- Scientific Reports, Vol. 5, Issue 1
Chiral Magnetic Soliton Lattice on a Chiral Helimagnet
journal, March 2012
- Togawa, Y.; Koyama, T.; Takayanagi, K.
- Physical Review Letters, Vol. 108, Issue 10
Skyrmionic spin Seebeck effect via dissipative thermomagnonic torques
journal, June 2014
- Kovalev, Alexey A.
- Physical Review B, Vol. 89, Issue 24
Degeneracies and fluctuations of Néel skyrmions in confined geometries
journal, October 2015
- Keesman, Rick; Leonov, A. O.; van Dieten, P.
- Physical Review B, Vol. 92, Issue 13
Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies?
journal, September 2011
- Kiselev, N. S.; Bogdanov, A. N.; Schäfer, R.
- Journal of Physics D: Applied Physics, Vol. 44, Issue 39
Temperature-Dependent Interplay of Dzyaloshinskii-Moriya Interaction and Single-Ion Anisotropy in Multiferroic
journal, September 2014
- Jeong, Jaehong; Le, Manh Duc; Bourges, P.
- Physical Review Letters, Vol. 113, Issue 10
Exchange Bias Driven by the Dzyaloshinskii-Moriya Interaction and Ferroelectric Polarization at -Type Antiferromagnetic Perovskite Interfaces
journal, September 2009
- Dong, Shuai; Yamauchi, Kunihiko; Yunoki, Seiji
- Physical Review Letters, Vol. 103, Issue 12
Molecular beam epitaxy growth of [CrGe/MnGe/FeGe] superlattices: Toward artificial B20 skyrmion materials with tunable interactions
journal, June 2017
- Ahmed, Adam S.; Esser, Bryan D.; Rowland, James
- Journal of Crystal Growth, Vol. 467
Skyrmion Lattice in a Chiral Magnet
journal, February 2009
- Muhlbauer, S.; Binz, B.; Jonietz, F.
- Science, Vol. 323, Issue 5916
Large voltage-induced magnetic anisotropy change in a few atomic layers of iron
journal, January 2009
- Maruyama, T.; Shiota, Y.; Nozaki, T.
- Nature Nanotechnology, Vol. 4, Issue 3
Antiskyrmions stabilized at interfaces by anisotropic Dzyaloshinskii-Moriya interactions
journal, August 2017
- Hoffmann, Markus; Zimmermann, Bernd; Müller, Gideon P.
- Nature Communications, Vol. 8, Issue 1
Surface twist instabilities and skyrmion states in chiral ferromagnets
journal, July 2014
- Meynell, S. A.; Wilson, M. N.; Fritzsche, H.
- Physical Review B, Vol. 90, Issue 1
Stability of skyrmion lattices and symmetries of quasi-two-dimensional chiral magnets
journal, February 2016
- Güngördü, Utkan; Nepal, Rabindra; Tretiakov, Oleg A.
- Physical Review B, Vol. 93, Issue 6
Simultaneous control of the Dzyaloshinskii-Moriya interaction and magnetic anisotropy in nanomagnetic trilayers
journal, August 2017
- Balk, A. L.; Kim, K-W.; Pierce, D. T.
- Physical Review Letters, Vol. 119, Issue 7
Classics in Magnetics A Phenomenological Theory of Damping in Ferromagnetic Materials
journal, November 2004
- Gilbert, T. L.
- IEEE Transactions on Magnetics, Vol. 40, Issue 6
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
Electric field control of the skyrmion lattice in Cu 2 OSeO 3
journal, October 2012
- White, J. S.; Levatić, I.; Omrani, A. A.
- Journal of Physics: Condensed Matter, Vol. 24, Issue 43
Chiral skyrmions in cubic helimagnet films: The role of uniaxial anisotropy
journal, March 2014
- Wilson, M. N.; Butenko, A. B.; Bogdanov, A. N.
- Physical Review B, Vol. 89, Issue 9
Electric-field-driven switching of individual magnetic skyrmions
journal, November 2016
- Hsu, Pin-Jui; Kubetzka, André; Finco, Aurore
- Nature Nanotechnology, Vol. 12, Issue 2
Writing and Deleting Single Magnetic Skyrmions
journal, August 2013
- Romming, N.; Hanneken, C.; Menzel, M.
- Science, Vol. 341, Issue 6146
Magnon-skyrmion scattering in chiral magnets
journal, September 2014
- Schütte, Christoph; Garst, Markus
- Physical Review B, Vol. 90, Issue 9
Magnetic skyrmions: advances in physics and potential applications
journal, June 2017
- Fert, Albert; Reyren, Nicolas; Cros, Vincent
- Nature Reviews Materials, Vol. 2, Issue 7
Thermally driven ratchet motion of a skyrmion microcrystal and topological magnon Hall effect
journal, January 2014
- Mochizuki, M.; Yu, X. Z.; Seki, S.
- Nature Materials, Vol. 13, Issue 3
Controlling skyrmion helicity via engineered Dzyaloshinskii–Moriya interactions
journal, September 2016
- Díaz, Sebastián A.; Troncoso, Roberto E.
- Journal of Physics: Condensed Matter, Vol. 28, Issue 42
Uniaxial stress control of skyrmion phase
journal, October 2015
- Nii, Y.; Nakajima, T.; Kikkawa, A.
- Nature Communications, Vol. 6, Issue 1
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
Anisotropic Superexchange Interaction and Weak Ferromagnetism
journal, October 1960
- Moriya, Tôru
- Physical Review, Vol. 120, Issue 1
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
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
Anisotropic Dzyaloshinskii-Moriya interaction in ultrathin epitaxial Au/Co/W(110)
journal, June 2017
- Camosi, Lorenzo; Rohart, Stanislas; Fruchart, Olivier
- Physical Review B, Vol. 95, Issue 21
Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
journal, November 2013
- Rohart, S.; Thiaville, A.
- Physical Review B, Vol. 88, Issue 18
Nonreciprocal spin-wave channeling along textures driven by the Dzyaloshinskii-Moriya interaction
journal, June 2014
- Garcia-Sanchez, Felipe; Borys, Pablo; Vansteenkiste, Arne
- Physical Review B, Vol. 89, Issue 22
Theory of antiskyrmions in magnets
journal, January 2016
- Koshibae, Wataru; Nagaosa, Naoto
- Nature Communications, Vol. 7, Issue 1
Magnetic Nano-skyrmion Lattice Observed in a Si-Wafer-Based Multilayer System
journal, May 2015
- Schlenhoff, Anika; Lindner, Philipp; Friedlein, Johannes
- ACS Nano, Vol. 9, Issue 6