Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings

Magnetic skyrmions are topological solitons with a nanoscale winding spin texture that hold promise for spintronics applications1–4. Skyrmions have so far been observed in a variety of magnets that exhibit nearly parallel alignment for neighbouring spins, but theoretically skyrmions with anti-parall...

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Autores principales: Gao, Shang, Rosales, Héctor Diego, Gómez Albarracín, Flavia Alejandra, Tsurkan, Vladimir, Kaur, Guratinder, Fenell, Tom, Steffens, Paul, Boehm, Martin, Čermák, Petr, Schneidewind, Astrid, Ressouche, Eric, Cabra, Daniel Carlos, Rüegg, Christian, Zaharko, Oksana
Formato: Articulo
Lenguaje:Español
Publicado: 2020
Materias:
Física
Information storage systems
Magnetic properties
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/105582
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-105582
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Física
Information storage systems
Magnetic properties
spellingShingle Física
Information storage systems
Magnetic properties
Gao, Shang
Rosales, Héctor Diego
Gómez Albarracín, Flavia Alejandra
Tsurkan, Vladimir
Kaur, Guratinder
Fenell, Tom
Steffens, Paul
Boehm, Martin
Čermák, Petr
Schneidewind, Astrid
Ressouche, Eric
Cabra, Daniel Carlos
Rüegg, Christian
Zaharko, Oksana
Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
topic_facet Física
Information storage systems
Magnetic properties
description Magnetic skyrmions are topological solitons with a nanoscale winding spin texture that hold promise for spintronics applications1–4. Skyrmions have so far been observed in a variety of magnets that exhibit nearly parallel alignment for neighbouring spins, but theoretically skyrmions with anti-parallel neighbouring spins are also possible. Such antiferromagnetic skyrmions may allow more flexible control than conventional ferromagnetic skyrmions5–10. Here, by combining neutron scattering measurements and Monte Carlo simulations, we show that a fractional antiferromagnetic skyrmion lattice is stabilized in MnSc2S4 through anisotropic couplings. The observed lattice is composed of three antiferromagnetically coupled sublattices, and each sublattice is a triangular skyrmion lattice that is fractionalized into two parts with an incipient meron (half-skyrmion) character11,12. Our work demonstrates that the theoretically proposed antiferromagnetic skyrmions can be stabilized in real materials and represents an important step towards their implementation in spintronic devices.
format Articulo
Articulo
author Gao, Shang
Rosales, Héctor Diego
Gómez Albarracín, Flavia Alejandra
Tsurkan, Vladimir
Kaur, Guratinder
Fenell, Tom
Steffens, Paul
Boehm, Martin
Čermák, Petr
Schneidewind, Astrid
Ressouche, Eric
Cabra, Daniel Carlos
Rüegg, Christian
Zaharko, Oksana
author_facet Gao, Shang
Rosales, Héctor Diego
Gómez Albarracín, Flavia Alejandra
Tsurkan, Vladimir
Kaur, Guratinder
Fenell, Tom
Steffens, Paul
Boehm, Martin
Čermák, Petr
Schneidewind, Astrid
Ressouche, Eric
Cabra, Daniel Carlos
Rüegg, Christian
Zaharko, Oksana
author_sort Gao, Shang
title Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
title_short Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
title_full Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
title_fullStr Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
title_full_unstemmed Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
title_sort fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/105582
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