The University of Southampton
University of Southampton Institutional Repository

Skyrmions in thin films with easy-plane magnetocrystalline anisotropy

Skyrmions in thin films with easy-plane magnetocrystalline anisotropy
Skyrmions in thin films with easy-plane magnetocrystalline anisotropy
We demonstrate that chiral skyrmionic magnetization configurations can be found as the minimum energy state in B20 thin filmmaterials with easy-plane magnetocrystalline anisotropy with an applied magnetic field perpendicular to the film plane. Our observations contradict results from prior analytical work, but are compatible with recent experimental investigations. The size of the observed skyrmions increase with the easy-plane magnetocrystalline anisotropy. We use a full micromagnetic model including demagnetization and a three-dimensional geometry to find local energy minimum (metastable) magnetization configurations using numerical damped time integration. We explore the phase space of the system and start simulations from a variety of initial magnetization configurations to present a systematic overview of anisotropy and magnetic field parameters for which skyrmions are metastable and global energy minimum (stable) states.
0003-6951
1-4
Vousden, Mark
d45312dd-a46f-4376-89f4-38b1ac8957c9
Albert, Maximilian
a8049610-1e98-4cfb-b59a-177645a42b47
Beg, Marijan
499a2633-2ab7-4ec3-ab2a-c6eae1874f83
Bisotti, Marc-Antonio
be2d7abd-afdc-4d18-a2e9-a633d73a67b9
Carey, Rebecca
fc5ef402-befe-4fff-ad14-c192eed54f36
Chernyshenko, Dmitri
62dad926-c42a-43db-9312-2cacbd53a042
Cortes, David
97d026d6-1083-4edf-8ba6-2f66a3e15033
Wang, Weiwei
42981e5f-b7ee-44f7-a64d-d47ab0cacbce
Hovorka, Ondrej
a12bd550-ad45-4963-aa26-dd81dd1609ee
Marrows, Christopher H.
412a62c5-225d-444b-8267-5340480591fd
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Vousden, Mark
d45312dd-a46f-4376-89f4-38b1ac8957c9
Albert, Maximilian
a8049610-1e98-4cfb-b59a-177645a42b47
Beg, Marijan
499a2633-2ab7-4ec3-ab2a-c6eae1874f83
Bisotti, Marc-Antonio
be2d7abd-afdc-4d18-a2e9-a633d73a67b9
Carey, Rebecca
fc5ef402-befe-4fff-ad14-c192eed54f36
Chernyshenko, Dmitri
62dad926-c42a-43db-9312-2cacbd53a042
Cortes, David
97d026d6-1083-4edf-8ba6-2f66a3e15033
Wang, Weiwei
42981e5f-b7ee-44f7-a64d-d47ab0cacbce
Hovorka, Ondrej
a12bd550-ad45-4963-aa26-dd81dd1609ee
Marrows, Christopher H.
412a62c5-225d-444b-8267-5340480591fd
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160

Vousden, Mark, Albert, Maximilian, Beg, Marijan, Bisotti, Marc-Antonio, Carey, Rebecca, Chernyshenko, Dmitri, Cortes, David, Wang, Weiwei, Hovorka, Ondrej, Marrows, Christopher H. and Fangohr, Hans (2016) Skyrmions in thin films with easy-plane magnetocrystalline anisotropy. Applied Physics Letters, 108 (13), 1-4. (doi:10.1063/1.4945262).

Record type: Article

Abstract

We demonstrate that chiral skyrmionic magnetization configurations can be found as the minimum energy state in B20 thin filmmaterials with easy-plane magnetocrystalline anisotropy with an applied magnetic field perpendicular to the film plane. Our observations contradict results from prior analytical work, but are compatible with recent experimental investigations. The size of the observed skyrmions increase with the easy-plane magnetocrystalline anisotropy. We use a full micromagnetic model including demagnetization and a three-dimensional geometry to find local energy minimum (metastable) magnetization configurations using numerical damped time integration. We explore the phase space of the system and start simulations from a variety of initial magnetization configurations to present a systematic overview of anisotropy and magnetic field parameters for which skyrmions are metastable and global energy minimum (stable) states.

Text
1.4945262 - Other
Restricted to Repository staff only
Request a copy

More information

Accepted/In Press date: 21 March 2016
e-pub ahead of print date: 30 March 2016
Organisations: Computational Engineering & Design Group

Identifiers

Local EPrints ID: 391925
URI: https://eprints.soton.ac.uk/id/eprint/391925
ISSN: 0003-6951
PURE UUID: 570a5c1c-c342-4471-953b-1c056e818031
ORCID for David Cortes: ORCID iD orcid.org/0000-0003-3799-3141

Catalogue record

Date deposited: 13 Apr 2016 13:10
Last modified: 20 Feb 2019 01:23

Export record

Altmetrics

Contributors

Author: Mark Vousden
Author: Maximilian Albert
Author: Marijan Beg
Author: Marc-Antonio Bisotti
Author: Rebecca Carey
Author: Dmitri Chernyshenko
Author: David Cortes ORCID iD
Author: Weiwei Wang
Author: Ondrej Hovorka
Author: Christopher H. Marrows
Author: Hans Fangohr

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×