Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
Original language description
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.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/LM2015050" target="_blank" >LM2015050: Institut Laue-Langevin – participation of the Czech Republic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)