Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10416422" target="_blank" >RIV/00216208:11320/20:10416422 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=i~JSDVBWQU" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=i~JSDVBWQU</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41586-020-2716-8" target="_blank" >10.1038/s41586-020-2716-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings

Popis výsledku v původním jazyce

Magnetic skyrmions are topological solitons with a nanoscale winding spin texture that hold promise for spintronics applications(1-4). 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 skyrmions(5-10). Here, by combining neutron scattering measurements and Monte Carlo simulations, we show that a fractional antiferromagnetic skyrmion lattice is stabilized in MnSc(2)S(4)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) character(11,12). 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. Theoretically predicted fractional antiferromagnetic skyrmions are experimentally realized in MnSc(2)S(4)and are found to originate from anisotropic couplings over nearest neighbours in the crystal lattice.

Název v anglickém jazyce

Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings

Popis výsledku anglicky

Magnetic skyrmions are topological solitons with a nanoscale winding spin texture that hold promise for spintronics applications(1-4). 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 skyrmions(5-10). Here, by combining neutron scattering measurements and Monte Carlo simulations, we show that a fractional antiferromagnetic skyrmion lattice is stabilized in MnSc(2)S(4)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) character(11,12). 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. Theoretically predicted fractional antiferromagnetic skyrmions are experimentally realized in MnSc(2)S(4)and are found to originate from anisotropic couplings over nearest neighbours in the crystal lattice.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/LM2015050" target="_blank" >LM2015050: Institut Laue-Langevin – účast České republiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nature

ISSN

0028-0836

e-ISSN

—

Svazek periodika

586

Číslo periodika v rámci svazku

7827

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

37-41

Kód UT WoS článku

000572352700007

EID výsledku v databázi Scopus

2-s2.0-85091351580