Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel

Autores
Tobia, Dina; Milano, Julian; Causa, Maria Teresa Beatriz; Winkler, Elin Lilian
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, we present a study of the low temperature magnetic phases of polycrystalline MnCr2O4 spinel through dc magnetization and ferromagnetic resonance spectroscopy (FMR). Through these experiments, we determined the main characteristic temperatures: TC ∼ 41K and TH ∼ 18K corresponding, respectively, to the ferrimagnetic order and to the low temperature helicoidal transitions. The temperature evolution of the system is described by a phenomenological approach that considers the different terms that contribute to the free energy density. Below the Curie temperature, the FMR spectra were modeled by a cubic magnetocrystalline anisotropy to the second order, with K1 and K2 anisotropy constants that define the easy magnetization axis along the 〈110〉 direction. At lower temperatures, the formation of a helicoidal phase was considered by including uniaxial anisotropy axis along the [110] propagation direction of the spiral arrange, with a Ku anisotropy constant. The values obtained from the fittings at 5K are K1 = -2.3 × 104 erg cm-3, K2 = 6.4 × 104 erg cm-3 and Ku = 7.5 × 104 erg cm-3.
Fil: Tobia, Dina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Milano, Julian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Causa, Maria Teresa Beatriz. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina
Fil: Winkler, Elin Lilian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Chromium Spinel
Ferromagnetic Resonance
Magnetic Anisotropies
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/37773
Acceder
id CONICETDig_63981b288ae525412a07cf2c11f0b17a
oai_identifier_str oai:ri.conicet.gov.ar:11336/37773
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinelTobia, DinaMilano, JulianCausa, Maria Teresa BeatrizWinkler, Elin LilianChromium SpinelFerromagnetic ResonanceMagnetic Anisotropieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this work, we present a study of the low temperature magnetic phases of polycrystalline MnCr2O4 spinel through dc magnetization and ferromagnetic resonance spectroscopy (FMR). Through these experiments, we determined the main characteristic temperatures: TC ∼ 41K and TH ∼ 18K corresponding, respectively, to the ferrimagnetic order and to the low temperature helicoidal transitions. The temperature evolution of the system is described by a phenomenological approach that considers the different terms that contribute to the free energy density. Below the Curie temperature, the FMR spectra were modeled by a cubic magnetocrystalline anisotropy to the second order, with K1 and K2 anisotropy constants that define the easy magnetization axis along the 〈110〉 direction. At lower temperatures, the formation of a helicoidal phase was considered by including uniaxial anisotropy axis along the [110] propagation direction of the spiral arrange, with a Ku anisotropy constant. The values obtained from the fittings at 5K are K1 = -2.3 × 104 erg cm-3, K2 = 6.4 × 104 erg cm-3 and Ku = 7.5 × 104 erg cm-3.Fil: Tobia, Dina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Milano, Julian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Causa, Maria Teresa Beatriz. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; ArgentinaFil: Winkler, Elin Lilian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaIOP Publishing2015-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/37773Tobia, Dina; Milano, Julian; Causa, Maria Teresa Beatriz; Winkler, Elin Lilian; Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel; IOP Publishing; Journal of Physics: Condensed Matter; 27; 1; 1-2015; 1-6; 0160030953-8984CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/27/1/016003info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/27/1/016003/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:43:58Zoai:ri.conicet.gov.ar:11336/37773instacron: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:34982025-09-03 09:43:58.577CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel
title Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel
spellingShingle Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel
Tobia, Dina
Chromium Spinel
Ferromagnetic Resonance
Magnetic Anisotropies
title_short Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel
title_full Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel
title_fullStr Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel
title_full_unstemmed Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel
title_sort Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel
dc.creator.none.fl_str_mv Tobia, Dina
Milano, Julian
Causa, Maria Teresa Beatriz
Winkler, Elin Lilian
author Tobia, Dina
author_facet Tobia, Dina
Milano, Julian
Causa, Maria Teresa Beatriz
Winkler, Elin Lilian
author_role author
author2 Milano, Julian
Causa, Maria Teresa Beatriz
Winkler, Elin Lilian
author2_role author
author
author
dc.subject.none.fl_str_mv Chromium Spinel
Ferromagnetic Resonance
Magnetic Anisotropies
topic Chromium Spinel
Ferromagnetic Resonance
Magnetic Anisotropies
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work, we present a study of the low temperature magnetic phases of polycrystalline MnCr2O4 spinel through dc magnetization and ferromagnetic resonance spectroscopy (FMR). Through these experiments, we determined the main characteristic temperatures: TC ∼ 41K and TH ∼ 18K corresponding, respectively, to the ferrimagnetic order and to the low temperature helicoidal transitions. The temperature evolution of the system is described by a phenomenological approach that considers the different terms that contribute to the free energy density. Below the Curie temperature, the FMR spectra were modeled by a cubic magnetocrystalline anisotropy to the second order, with K1 and K2 anisotropy constants that define the easy magnetization axis along the 〈110〉 direction. At lower temperatures, the formation of a helicoidal phase was considered by including uniaxial anisotropy axis along the [110] propagation direction of the spiral arrange, with a Ku anisotropy constant. The values obtained from the fittings at 5K are K1 = -2.3 × 104 erg cm-3, K2 = 6.4 × 104 erg cm-3 and Ku = 7.5 × 104 erg cm-3.
Fil: Tobia, Dina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Milano, Julian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Causa, Maria Teresa Beatriz. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina
Fil: Winkler, Elin Lilian. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description In this work, we present a study of the low temperature magnetic phases of polycrystalline MnCr2O4 spinel through dc magnetization and ferromagnetic resonance spectroscopy (FMR). Through these experiments, we determined the main characteristic temperatures: TC ∼ 41K and TH ∼ 18K corresponding, respectively, to the ferrimagnetic order and to the low temperature helicoidal transitions. The temperature evolution of the system is described by a phenomenological approach that considers the different terms that contribute to the free energy density. Below the Curie temperature, the FMR spectra were modeled by a cubic magnetocrystalline anisotropy to the second order, with K1 and K2 anisotropy constants that define the easy magnetization axis along the 〈110〉 direction. At lower temperatures, the formation of a helicoidal phase was considered by including uniaxial anisotropy axis along the [110] propagation direction of the spiral arrange, with a Ku anisotropy constant. The values obtained from the fittings at 5K are K1 = -2.3 × 104 erg cm-3, K2 = 6.4 × 104 erg cm-3 and Ku = 7.5 × 104 erg cm-3.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/37773
Tobia, Dina; Milano, Julian; Causa, Maria Teresa Beatriz; Winkler, Elin Lilian; Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel; IOP Publishing; Journal of Physics: Condensed Matter; 27; 1; 1-2015; 1-6; 016003
0953-8984
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37773
identifier_str_mv Tobia, Dina; Milano, Julian; Causa, Maria Teresa Beatriz; Winkler, Elin Lilian; Temperature evolution of the effective magnetic anisotropy in the MnCr2O4 spinel; IOP Publishing; Journal of Physics: Condensed Matter; 27; 1; 1-2015; 1-6; 016003
0953-8984
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/27/1/016003
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/27/1/016003/meta
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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 13.13397

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