Vortex lines in a cubic magnetic nanodot: structure and dynamics

Vortex lines in a cubic magnetic nanodot: structure and dynamics

Langevin simulations of cubic magnetic nanodots were performed using the Landau-Lifshitz equation with exchange and dipolar interactions. Vortices tend to organize as lines: we establish the structure and dynamics thereof for a large range of the dipolar versus exchange ratio d. These lines tend to...

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Main Authors: Depondt Ph., Lévy J.-C. S.
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2020/20/epjconf_cdd2020_01014.pdf
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spelling doaj-7841dba4a6474d84a15ab3ddf069cdde2021-08-02T14:59:40ZengEDP SciencesEPJ Web of Conferences2100-014X2020-01-012440101410.1051/epjconf/202024401014epjconf_cdd2020_01014Vortex lines in a cubic magnetic nanodot: structure and dynamicsDepondt Ph.0Lévy J.-C. S.1Institut des NanoSciences de Paris (INSP), Sorbonne Universit´e, CNRS-UMR 7588MPQ, UMR CNRS 7162, Universit´e Paris Diderot, Universit´e de ParisLangevin simulations of cubic magnetic nanodots were performed using the Landau-Lifshitz equation with exchange and dipolar interactions. Vortices tend to organize as lines: we establish the structure and dynamics thereof for a large range of the dipolar versus exchange ratio d. These lines tend to be bent and twisted. For large values of the dipolar interaction, a complex network of vortex lines arises. Dynamics evidences low frequency collective gyrotropic motions of vortex lines which maintain their distance during motion.https://www.epj-conferences.org/articles/epjconf/pdf/2020/20/epjconf_cdd2020_01014.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Depondt Ph.
Lévy J.-C. S.
spellingShingle Depondt Ph.
Lévy J.-C. S.
Vortex lines in a cubic magnetic nanodot: structure and dynamics
EPJ Web of Conferences
author_facet Depondt Ph.
Lévy J.-C. S.
author_sort Depondt Ph.
title Vortex lines in a cubic magnetic nanodot: structure and dynamics
title_short Vortex lines in a cubic magnetic nanodot: structure and dynamics
title_full Vortex lines in a cubic magnetic nanodot: structure and dynamics
title_fullStr Vortex lines in a cubic magnetic nanodot: structure and dynamics
title_full_unstemmed Vortex lines in a cubic magnetic nanodot: structure and dynamics
title_sort vortex lines in a cubic magnetic nanodot: structure and dynamics
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2020-01-01
description Langevin simulations of cubic magnetic nanodots were performed using the Landau-Lifshitz equation with exchange and dipolar interactions. Vortices tend to organize as lines: we establish the structure and dynamics thereof for a large range of the dipolar versus exchange ratio d. These lines tend to be bent and twisted. For large values of the dipolar interaction, a complex network of vortex lines arises. Dynamics evidences low frequency collective gyrotropic motions of vortex lines which maintain their distance during motion.
url https://www.epj-conferences.org/articles/epjconf/pdf/2020/20/epjconf_cdd2020_01014.pdf
work_keys_str_mv AT depondtph vortexlinesinacubicmagneticnanodotstructureanddynamics
AT levyjcs vortexlinesinacubicmagneticnanodotstructureanddynamics
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