Journal Article

FZJ-2015-03901

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Influence of thermal energy on exchange-bias studied by finite-element simulations

Dean, J. ; Kohn, A. ; Kovács, A.FZJ* ; Allwood, D. A. ; Suess, D. ; Schrefl, T.

2013
American Inst. of Physics Melville, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/17326  doi:10.1063/1.4816664

Abstract: In this article we describe the thermal relaxation in anti-ferromagnetic/ferromagnetic bilayers using a hybrid method that combines a kinetic Monte Carlo technique with magnetization dynamics following the Landau Lifshitz Gilbert equation. A granular anti-ferromagnetic layer is exchange coupled to an amorphous ferromagnetic layer and discretized using a finite element method. Calculations are made to help clarify how the underlying magnetic structure is related to the measured exchange bias fields as a function of temperature for the case of amorphous Co65.5Fe14.5B20/granular Ir22Mn78 bilayers. Our calculations are in excellent agreement with experimentally measured macro-magnetic properties of these bilayers.

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Contributing Institute(s):

1. Mikrostrukturforschung (PGI-5)

Research Program(s):

1. 42G - Peter Grünberg-Centre (PG-C) (POF2-42G41) (POF2-42G41)

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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