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Title: Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents

Abstract

Recent experiments have shown that magnetic skyrmion bubbles can be generated and injected at room temperature in thin films. In this study, we demonstrate, using micromagnetic modeling, that such skyrmions can be generated by an inhomogeneous spin Hall torque in the presence of Dzyaloshinskii-Moriya interactions (DMIs). In the experimental Ta-Co 20Fe 60B 20 thin films, the DMI is rather small; nevertheless, the skyrmion bubbles are stable, or at least metastable on observational time scales.

Authors:
 [1];  [2];  [3];  [2];  [2]
  1. Argonne National Lab. (ANL), Lemont, IL (United States); Northwestern-Argonne Institute for Science and Engineering, Evanston, IL (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States); Northern Illinois Univ., DeKalb, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1339301
Alternate Identifier(s):
OSTI ID: 1240477
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 93; Journal Issue: 9; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; skyrmions; spin-Hall current

Citation Formats

Heinonen, Olle, Jiang, Wanjun, Somaily, Hamoud, te Velthuis, Suzanne G. E., and Hoffmann, Axel. Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents. United States: N. p., 2016. Web. doi:10.1103/PhysRevB.93.094407.
Heinonen, Olle, Jiang, Wanjun, Somaily, Hamoud, te Velthuis, Suzanne G. E., & Hoffmann, Axel. Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents. United States. doi:10.1103/PhysRevB.93.094407.
Heinonen, Olle, Jiang, Wanjun, Somaily, Hamoud, te Velthuis, Suzanne G. E., and Hoffmann, Axel. Mon . "Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents". United States. doi:10.1103/PhysRevB.93.094407. https://www.osti.gov/servlets/purl/1339301.
@article{osti_1339301,
title = {Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents},
author = {Heinonen, Olle and Jiang, Wanjun and Somaily, Hamoud and te Velthuis, Suzanne G. E. and Hoffmann, Axel},
abstractNote = {Recent experiments have shown that magnetic skyrmion bubbles can be generated and injected at room temperature in thin films. In this study, we demonstrate, using micromagnetic modeling, that such skyrmions can be generated by an inhomogeneous spin Hall torque in the presence of Dzyaloshinskii-Moriya interactions (DMIs). In the experimental Ta-Co20Fe60B20 thin films, the DMI is rather small; nevertheless, the skyrmion bubbles are stable, or at least metastable on observational time scales.},
doi = {10.1103/PhysRevB.93.094407},
journal = {Physical Review B},
number = 9,
volume = 93,
place = {United States},
year = {2016},
month = {3}
}

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Cited by: 13 works
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Works referenced in this record:

Mesoscale magnetism
journal, August 2015

  • Hoffmann, Axel; Schultheiß, Helmut
  • Current Opinion in Solid State and Materials Science, Vol. 19, Issue 4
  • DOI: 10.1016/j.cossms.2014.11.004

A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics
journal, January 1958


Anisotropic Superexchange Interaction and Weak Ferromagnetism
journal, October 1960


Skyrmion Lattice in a Chiral Magnet
journal, February 2009


A new class of chiral materials hosting magnetic skyrmions beyond room temperature
journal, July 2015

  • Tokunaga, Y.; Yu, X. Z.; White, J. S.
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms8638

Current-driven dynamics of chiral ferromagnetic domain walls
journal, June 2013

  • Emori, Satoru; Bauer, Uwe; Ahn, Sung-Min
  • Nature Materials, Vol. 12, Issue 7
  • DOI: 10.1038/nmat3675

Chiral spin torque at magnetic domain walls
journal, June 2013

  • Ryu, Kwang-Su; Thomas, Luc; Yang, See-Hun
  • Nature Nanotechnology, Vol. 8, Issue 7
  • DOI: 10.1038/nnano.2013.102

Room temperature skyrmion ground state stabilized through interlayer exchange coupling
journal, June 2015

  • Chen, Gong; Mascaraque, Arantzazu; N'Diaye, Alpha T.
  • Applied Physics Letters, Vol. 106, Issue 24
  • DOI: 10.1063/1.4922726

Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies?
journal, September 2011


Topological effects in nanomagnetism: from superparamagnetism to chiral quantum solitons
journal, February 2012


Skyrmions on the track
journal, March 2013

  • Fert, Albert; Cros, Vincent; Sampaio, João
  • Nature Nanotechnology, Vol. 8, Issue 3
  • DOI: 10.1038/nnano.2013.29

Opportunities at the Frontiers of Spintronics
journal, October 2015


Writing and Deleting Single Magnetic Skyrmions
journal, August 2013


Blowing magnetic skyrmion bubbles
journal, June 2015


Chiral magnetization textures stabilized by the Dzyaloshinskii-Moriya interaction during spin-orbit torque switching
journal, March 2014

  • Perez, N.; Martinez, E.; Torres, L.
  • Applied Physics Letters, Vol. 104, Issue 9
  • DOI: 10.1063/1.4867199

Spin Hall torque magnetometry of Dzyaloshinskii domain walls
journal, November 2014


Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
journal, November 2013


Mus81-Mms4 and Yen1 resolve a novel anaphase bridge formed by noncanonical Holliday junctions
journal, December 2014

  • García-Luis, Jonay; Machín, Félix
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms6652

Magnetism in ultrathin film structures
journal, April 2008


Effects of sputtering Ar gas pressure in the exchange stiffness constant of Co40Fe40B20 thin films
journal, August 2013


Ferromagnetic resonance and damping properties of CoFeB thin films as free layers in MgO-based magnetic tunnel junctions
journal, August 2011

  • Liu, Xiaoyong; Zhang, Wenzhe; Carter, Matthew J.
  • Journal of Applied Physics, Vol. 110, Issue 3
  • DOI: 10.1063/1.3615961

Damping of Co x Fe 80−x B 20 ultrathin films with perpendicular magnetic anisotropy
journal, January 2013

  • Devolder, T.; Ducrot, P. -H.; Adam, J. -P.
  • Applied Physics Letters, Vol. 102, Issue 2
  • DOI: 10.1063/1.4775684

Spin Hall Effects in Metals
journal, October 2013


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
  • DOI: 10.1007/BF01612066

The temperature dependence of the domain spacing in ultrathin magnetic films
journal, November 1993


Dzyaloshinskii-Moriya interaction accounting for the orientation of magnetic domains in ultrathin films: Fe/W(110)
journal, October 2008


Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets
journal, February 2016

  • Woo, Seonghoon; Litzius, Kai; Krüger, Benjamin
  • Nature Materials, Vol. 15, Issue 5
  • DOI: 10.1038/nmat4593

Micromagnetic modeling of spin-wave dynamics in exchange-biased permalloy disks
journal, October 2007


Micromagnetic modeling of the magnetization dynamics in a circularly exchange-biased and exchange-coupled ferromagnetic multilayer
journal, July 2009


Dynamically stabilized magnetic skyrmions
journal, September 2015

  • Zhou, Y.; Iacocca, E.; Awad, A. A.
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms9193

    Works referencing / citing this record:

    Direct current-tunable MHz to multi-GHz skyrmion generation and control
    journal, July 2019