Crossover-behavior of the saturation magnetic fields of (100) and (110) Fe/Cr/Fe trilayers

We use a simple and realistic theoretical model to investigate the saturation magnetic fields of ultrathin (100) and (110) Fe/Cr/Fe trilayer system. We consider the Fe films presenting magneto-crystalline anisotropies (cubic and uniaxial) and interacting through bilinear and biquadratic exchange cou...

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Principais autores: Feitosa, Carlos Chesman de Araújo, Bezerra, Claudionor Gomes, Albuquerque, Eudenilson Lins de, Mariz, Ananias Monteiro
Formato: article
Idioma:English
Publicado em: Physics Letters A
Assuntos:
Saturation magnetic fields
Endereço do item:https://repositorio.ufrn.br/jspui/handle/123456789/29078
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spelling ri-123456789-290782020-06-28T07:40:49Z Crossover-behavior of the saturation magnetic fields of (100) and (110) Fe/Cr/Fe trilayers Feitosa, Carlos Chesman de Araújo Bezerra, Claudionor Gomes Albuquerque, Eudenilson Lins de Mariz, Ananias Monteiro Saturation magnetic fields We use a simple and realistic theoretical model to investigate the saturation magnetic fields of ultrathin (100) and (110) Fe/Cr/Fe trilayer system. We consider the Fe films presenting magneto-crystalline anisotropies (cubic and uniaxial) and interacting through bilinear and biquadratic exchange couplings. From the equilibrium configurations, which are determined by the absolute minimum of the magnetic energy, we were able to set up field-dependent phase diagrams for the situation where the external static magnetic field H is applied in the plane of the films at an arbitrary angle θH . We have obtained the critical frontier between the saturated and non-saturated phases. Two main results should be pointed out: (i) the change of the symmetry axis according to the magneto-crystalline fields and (ii) a sudden change (on a multicritical point) of the character of the magnetic phase transitions, typical of a crossover behavior 2020-05-27T23:38:07Z 2020-05-27T23:38:07Z 2006-01-27 article FEITOSA, Carlos Chesman de Araújo; BEZERRA, Claudionor Gomes ; ALBUQUERQUE, Eudenilson Lins de ; MARIZ, Ananias Monteiro . Crossover-behavior of the saturation magnetic fields of (100) and (110) Fe/Cr/Fe trilayers. Physics Letters A, holanda, v. 354, p. 221- 225, 2006. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0375960106001344. Acesso em: 16 mai. 2020. https://repositorio.ufrn.br/jspui/handle/123456789/29078 10.1016/j.physleta.2006.01.047 en Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Physics Letters A
institution Repositório Institucional
collection RI - UFRN
language English
topic Saturation magnetic fields
spellingShingle Saturation magnetic fields
Feitosa, Carlos Chesman de Araújo
Bezerra, Claudionor Gomes
Albuquerque, Eudenilson Lins de
Mariz, Ananias Monteiro
Crossover-behavior of the saturation magnetic fields of (100) and (110) Fe/Cr/Fe trilayers
description We use a simple and realistic theoretical model to investigate the saturation magnetic fields of ultrathin (100) and (110) Fe/Cr/Fe trilayer system. We consider the Fe films presenting magneto-crystalline anisotropies (cubic and uniaxial) and interacting through bilinear and biquadratic exchange couplings. From the equilibrium configurations, which are determined by the absolute minimum of the magnetic energy, we were able to set up field-dependent phase diagrams for the situation where the external static magnetic field H is applied in the plane of the films at an arbitrary angle θH . We have obtained the critical frontier between the saturated and non-saturated phases. Two main results should be pointed out: (i) the change of the symmetry axis according to the magneto-crystalline fields and (ii) a sudden change (on a multicritical point) of the character of the magnetic phase transitions, typical of a crossover behavior
format article
author Feitosa, Carlos Chesman de Araújo
Bezerra, Claudionor Gomes
Albuquerque, Eudenilson Lins de
Mariz, Ananias Monteiro
author_facet Feitosa, Carlos Chesman de Araújo
Bezerra, Claudionor Gomes
Albuquerque, Eudenilson Lins de
Mariz, Ananias Monteiro
author_sort Feitosa, Carlos Chesman de Araújo
title Crossover-behavior of the saturation magnetic fields of (100) and (110) Fe/Cr/Fe trilayers
title_short Crossover-behavior of the saturation magnetic fields of (100) and (110) Fe/Cr/Fe trilayers
title_full Crossover-behavior of the saturation magnetic fields of (100) and (110) Fe/Cr/Fe trilayers
title_fullStr Crossover-behavior of the saturation magnetic fields of (100) and (110) Fe/Cr/Fe trilayers
title_full_unstemmed Crossover-behavior of the saturation magnetic fields of (100) and (110) Fe/Cr/Fe trilayers
title_sort crossover-behavior of the saturation magnetic fields of (100) and (110) fe/cr/fe trilayers
publisher Physics Letters A
publishDate 2020
url https://repositorio.ufrn.br/jspui/handle/123456789/29078
work_keys_str_mv AT feitosacarloschesmandearaujo crossoverbehaviorofthesaturationmagneticfieldsof100and110fecrfetrilayers
AT bezerraclaudionorgomes crossoverbehaviorofthesaturationmagneticfieldsof100and110fecrfetrilayers
AT albuquerqueeudenilsonlinsde crossoverbehaviorofthesaturationmagneticfieldsof100and110fecrfetrilayers
AT marizananiasmonteiro crossoverbehaviorofthesaturationmagneticfieldsof100and110fecrfetrilayers
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