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Title: Manipulating topological states by imprinting non-collinear spin textures

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep08787· OSTI ID:1191299
 [1];  [1];  [2];  [3];  [4];  [3];  [5];  [1];  [1];  [6];  [1]
  1. Institute for Integrative Nanosciences, Dresden (Germany)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Daegu Gyeongbuk Institute of Science and Technology, Daegu (Korea)
  3. Helmholtz-Zentrum Berlin fur Materialien und Energie GmbH, Berlin (Germany)
  4. Institute for Theoretical Solid State Physics, Dresden (Germany)
  5. Helmholtz-Zentrum Berlin fur Materialien und Energie GmbH, Berlin (Germany); Institut fur Experimentalphysik/Festkorperphysik, Bochum (Germany)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ of California Santa Cruz, Santa Cruz, CA (United States)

Topological magnetic states, such as chiral skyrmions, are of great scientific interest and show huge potential for novel spintronics applications, provided their topological charges can be fully controlled. So far skyrmionic textures have been observed in noncentrosymmetric crystalline materials with low symmetry and at low temperatures. We propose theoretically and demonstrate experimentally the design of spin textures with topological charge densities that can be tailored at ambient temperatures. Tuning the interlayer coupling in vertically stacked nanopatterned magnetic heterostructures, such as a model system of a Co/Pd multilayer coupled to Permalloy, the in-plane non-collinear spin texture of one layer can be imprinted into the out-of-plane magnetised material. We observe distinct spin textures, e.g. vortices, magnetic swirls with tunable opening angle, donut states and skyrmion core configurations. We show that applying a small magnetic field, a reliable switching between topologically distinct textures can be achieved at remanence

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1191299
Journal Information:
Scientific Reports, Vol. 5, Issue 1; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 34 works
Citation information provided by
Web of Science

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Cited By (13)

Spin, Orbital, Weyl and Other Glasses in Topological Superfluids journal December 2018
Realization of ground-state artificial skyrmion lattices at room temperature journal October 2015
Thermal stability and topological protection of skyrmions in nanotracks journal June 2017
Skyrmionium – high velocity without the skyrmion Hall effect journal November 2018
Dzyaloshinskii–Moriya interaction in Pt/Co/Ir and Pt/Co/Ru multilayer films journal March 2018
Generation and stability of structurally imprinted target skyrmions in magnetic multilayers journal September 2019
Magnetism in curved geometries journal August 2016
Out-of-plane magnetized cone-shaped magnetic nanoshells journal February 2017
Techniques in micromagnetic simulation and analysis journal July 2017
Ultrafast magnetodynamics with free-electron lasers journal January 2018
Topological defects in weak perpendicular magnetic anisotropy NdCo honeycomb lattices journal November 2018
Realization of Ground-State Artificial Skyrmion Lattices at Room Temperature conference August 2016
Thermal stability and topological protection of skyrmions in nanotracks text January 2016

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