Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages

Autores
Nagy, Lesleis; Moreno Ortega, Roberto; Muxworthy, Adrian R.; Williams, Wyn; Paterson, Greig A.; Tauxe, Lisa; Valdez Grijalva, Miguel A.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Micromagnetic modeling allows the systematic study of the effects of particle size and shape on the first‐order reversal curve (FORC) magnetic hysteresis response for magnetite particles in the single‐domain (SD) and pseudo‐single domain (PSD) particle size range. The interpretation of FORCs, though widely used, has been highly subjective. Here, we use micromagnetics to model randomly oriented distributions of particles to allow more physically meaningful interpretations. We show that one commonly found type of PSD particle— namely the single vortex (SV) particle—has far more complex signals than SD particles, with multiple peaks and troughs in the FORC distribution, where the peaks have higher switching fields for larger SV particles. Particles in the SD to SV transition zone have the lowest switching fields. Symmetrical and prolate particles display similar behavior, with distinctive peaks forming near the vertical axis of the FORC diagram. In contrast, highly oblate particles produce “butterfly” structures, suggesting that these are potentially diagnostic of particle morphology. We also consider FORC diagrams for distributions of particle sizes and shapes and produce an online application that users can use to build their own FORC distributions. There is good agreement between the model predictions for distributions of particle sizes and shapes, and the published experimental literature.
Fil: Nagy, Lesleis. University of Liverpool; Reino Unido
Fil: Moreno Ortega, Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Muxworthy, Adrian R.. Imperial College London; Reino Unido
Fil: Williams, Wyn. University of Edinburgh; Reino Unido
Fil: Paterson, Greig A.. University of Liverpool; Reino Unido
Fil: Tauxe, Lisa. University of California at San Diego; Estados Unidos
Fil: Valdez Grijalva, Miguel A.. Instituto Mexicano del Petróleo; México
Materia
FORC
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/268690
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite AssemblagesNagy, LesleisMoreno Ortega, RobertoMuxworthy, Adrian R.Williams, WynPaterson, Greig A.Tauxe, LisaValdez Grijalva, Miguel A.FORChttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1Micromagnetic modeling allows the systematic study of the effects of particle size and shape on the first‐order reversal curve (FORC) magnetic hysteresis response for magnetite particles in the single‐domain (SD) and pseudo‐single domain (PSD) particle size range. The interpretation of FORCs, though widely used, has been highly subjective. Here, we use micromagnetics to model randomly oriented distributions of particles to allow more physically meaningful interpretations. We show that one commonly found type of PSD particle— namely the single vortex (SV) particle—has far more complex signals than SD particles, with multiple peaks and troughs in the FORC distribution, where the peaks have higher switching fields for larger SV particles. Particles in the SD to SV transition zone have the lowest switching fields. Symmetrical and prolate particles display similar behavior, with distinctive peaks forming near the vertical axis of the FORC diagram. In contrast, highly oblate particles produce “butterfly” structures, suggesting that these are potentially diagnostic of particle morphology. We also consider FORC diagrams for distributions of particle sizes and shapes and produce an online application that users can use to build their own FORC distributions. There is good agreement between the model predictions for distributions of particle sizes and shapes, and the published experimental literature.Fil: Nagy, Lesleis. University of Liverpool; Reino UnidoFil: Moreno Ortega, Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Muxworthy, Adrian R.. Imperial College London; Reino UnidoFil: Williams, Wyn. University of Edinburgh; Reino UnidoFil: Paterson, Greig A.. University of Liverpool; Reino UnidoFil: Tauxe, Lisa. University of California at San Diego; Estados UnidosFil: Valdez Grijalva, Miguel A.. Instituto Mexicano del Petróleo; MéxicoAmerican Geophysical Union2024-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/268690Nagy, Lesleis; Moreno Ortega, Roberto; Muxworthy, Adrian R.; Williams, Wyn; Paterson, Greig A.; et al.; Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages; American Geophysical Union; Geochemistry Geophysics Geosystems; 25; 7; 7-2024; 1-131525-2027CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GC011465info:eu-repo/semantics/altIdentifier/doi/10.1029/2024GC011465info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:17:26Zoai:ri.conicet.gov.ar:11336/268690instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:17:27.32CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages
title Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages
spellingShingle Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages
Nagy, Lesleis
FORC
title_short Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages
title_full Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages
title_fullStr Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages
title_full_unstemmed Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages
title_sort Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages
dc.creator.none.fl_str_mv Nagy, Lesleis
Moreno Ortega, Roberto
Muxworthy, Adrian R.
Williams, Wyn
Paterson, Greig A.
Tauxe, Lisa
Valdez Grijalva, Miguel A.
author Nagy, Lesleis
author_facet Nagy, Lesleis
Moreno Ortega, Roberto
Muxworthy, Adrian R.
Williams, Wyn
Paterson, Greig A.
Tauxe, Lisa
Valdez Grijalva, Miguel A.
author_role author
author2 Moreno Ortega, Roberto
Muxworthy, Adrian R.
Williams, Wyn
Paterson, Greig A.
Tauxe, Lisa
Valdez Grijalva, Miguel A.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv FORC
topic FORC
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Micromagnetic modeling allows the systematic study of the effects of particle size and shape on the first‐order reversal curve (FORC) magnetic hysteresis response for magnetite particles in the single‐domain (SD) and pseudo‐single domain (PSD) particle size range. The interpretation of FORCs, though widely used, has been highly subjective. Here, we use micromagnetics to model randomly oriented distributions of particles to allow more physically meaningful interpretations. We show that one commonly found type of PSD particle— namely the single vortex (SV) particle—has far more complex signals than SD particles, with multiple peaks and troughs in the FORC distribution, where the peaks have higher switching fields for larger SV particles. Particles in the SD to SV transition zone have the lowest switching fields. Symmetrical and prolate particles display similar behavior, with distinctive peaks forming near the vertical axis of the FORC diagram. In contrast, highly oblate particles produce “butterfly” structures, suggesting that these are potentially diagnostic of particle morphology. We also consider FORC diagrams for distributions of particle sizes and shapes and produce an online application that users can use to build their own FORC distributions. There is good agreement between the model predictions for distributions of particle sizes and shapes, and the published experimental literature.
Fil: Nagy, Lesleis. University of Liverpool; Reino Unido
Fil: Moreno Ortega, Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Muxworthy, Adrian R.. Imperial College London; Reino Unido
Fil: Williams, Wyn. University of Edinburgh; Reino Unido
Fil: Paterson, Greig A.. University of Liverpool; Reino Unido
Fil: Tauxe, Lisa. University of California at San Diego; Estados Unidos
Fil: Valdez Grijalva, Miguel A.. Instituto Mexicano del Petróleo; México
description Micromagnetic modeling allows the systematic study of the effects of particle size and shape on the first‐order reversal curve (FORC) magnetic hysteresis response for magnetite particles in the single‐domain (SD) and pseudo‐single domain (PSD) particle size range. The interpretation of FORCs, though widely used, has been highly subjective. Here, we use micromagnetics to model randomly oriented distributions of particles to allow more physically meaningful interpretations. We show that one commonly found type of PSD particle— namely the single vortex (SV) particle—has far more complex signals than SD particles, with multiple peaks and troughs in the FORC distribution, where the peaks have higher switching fields for larger SV particles. Particles in the SD to SV transition zone have the lowest switching fields. Symmetrical and prolate particles display similar behavior, with distinctive peaks forming near the vertical axis of the FORC diagram. In contrast, highly oblate particles produce “butterfly” structures, suggesting that these are potentially diagnostic of particle morphology. We also consider FORC diagrams for distributions of particle sizes and shapes and produce an online application that users can use to build their own FORC distributions. There is good agreement between the model predictions for distributions of particle sizes and shapes, and the published experimental literature.
publishDate 2024
dc.date.none.fl_str_mv 2024-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/268690
Nagy, Lesleis; Moreno Ortega, Roberto; Muxworthy, Adrian R.; Williams, Wyn; Paterson, Greig A.; et al.; Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages; American Geophysical Union; Geochemistry Geophysics Geosystems; 25; 7; 7-2024; 1-13
1525-2027
CONICET Digital
CONICET
url http://hdl.handle.net/11336/268690
identifier_str_mv Nagy, Lesleis; Moreno Ortega, Roberto; Muxworthy, Adrian R.; Williams, Wyn; Paterson, Greig A.; et al.; Micromagnetic Determination of the FORC Response of Paleomagnetically Significant Magnetite Assemblages; American Geophysical Union; Geochemistry Geophysics Geosystems; 25; 7; 7-2024; 1-13
1525-2027
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GC011465
info:eu-repo/semantics/altIdentifier/doi/10.1029/2024GC011465
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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