Strayfield calculation for micromagnetic simulations using true periodic boundary conditions

Abstract We present methods for calculating the strayfield in finite element and finite difference micromagnetic simulations using true periodic boundary conditions. In contrast to pseudo periodic boundary conditions, which are widely used in micromagnetic codes, the presented methods eliminate the...

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Autores principales:	Florian Bruckner, Amil Ducevic, Paul Heistracher, Claas Abert, Dieter Suess
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0fda716ce483492e8dd4d3779ab7c49d
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spelling	oai:doaj.org-article:0fda716ce483492e8dd4d3779ab7c49d2021-12-02T16:55:46ZStrayfield calculation for micromagnetic simulations using true periodic boundary conditions10.1038/s41598-021-88541-92045-2322https://doaj.org/article/0fda716ce483492e8dd4d3779ab7c49d2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88541-9https://doaj.org/toc/2045-2322Abstract We present methods for calculating the strayfield in finite element and finite difference micromagnetic simulations using true periodic boundary conditions. In contrast to pseudo periodic boundary conditions, which are widely used in micromagnetic codes, the presented methods eliminate the shape anisotropy originating from the outer boundary. This is a crucial feature when studying the influence of the microstructure on the performance of composite materials, which is demonstrated by hysteresis calculations of soft magnetic structures that are operated in a closed magnetic loop configuration. The applied differential formulation is perfectly suited for the application of true periodic boundary conditions. The finite difference equations can be solved by a highly efficient Fast Fourier Transform method.Florian BrucknerAmil DucevicPaul HeistracherClaas AbertDieter SuessNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Florian Bruckner Amil Ducevic Paul Heistracher Claas Abert Dieter Suess Strayfield calculation for micromagnetic simulations using true periodic boundary conditions
description	Abstract We present methods for calculating the strayfield in finite element and finite difference micromagnetic simulations using true periodic boundary conditions. In contrast to pseudo periodic boundary conditions, which are widely used in micromagnetic codes, the presented methods eliminate the shape anisotropy originating from the outer boundary. This is a crucial feature when studying the influence of the microstructure on the performance of composite materials, which is demonstrated by hysteresis calculations of soft magnetic structures that are operated in a closed magnetic loop configuration. The applied differential formulation is perfectly suited for the application of true periodic boundary conditions. The finite difference equations can be solved by a highly efficient Fast Fourier Transform method.
format	article
author	Florian Bruckner Amil Ducevic Paul Heistracher Claas Abert Dieter Suess
author_facet	Florian Bruckner Amil Ducevic Paul Heistracher Claas Abert Dieter Suess
author_sort	Florian Bruckner
title	Strayfield calculation for micromagnetic simulations using true periodic boundary conditions
title_short	Strayfield calculation for micromagnetic simulations using true periodic boundary conditions
title_full	Strayfield calculation for micromagnetic simulations using true periodic boundary conditions
title_fullStr	Strayfield calculation for micromagnetic simulations using true periodic boundary conditions
title_full_unstemmed	Strayfield calculation for micromagnetic simulations using true periodic boundary conditions
title_sort	strayfield calculation for micromagnetic simulations using true periodic boundary conditions
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0fda716ce483492e8dd4d3779ab7c49d
work_keys_str_mv	AT florianbruckner strayfieldcalculationformicromagneticsimulationsusingtrueperiodicboundaryconditions AT amilducevic strayfieldcalculationformicromagneticsimulationsusingtrueperiodicboundaryconditions AT paulheistracher strayfieldcalculationformicromagneticsimulationsusingtrueperiodicboundaryconditions AT claasabert strayfieldcalculationformicromagneticsimulationsusingtrueperiodicboundaryconditions AT dietersuess strayfieldcalculationformicromagneticsimulationsusingtrueperiodicboundaryconditions
_version_	1718382781885579264

Strayfield calculation for micromagnetic simulations using true periodic boundary conditions

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