Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys

Autores
Bilovol, Vitaliy; Saccone, Fabio Daniel
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Samples of NdyFe(86–-y–x)B14Tx (T: Mo, Nb; x = 2, 4; y = 7, 8) alloys were studied by X-ray absorption spectroscopy. The NEXAFS spectra of NdFeB ribbons produced by the melt spinning technique (as quenched, AQ) and subsequently annealed (TT) were taken at Mo and Nb L3,2-edge. We calculated the variations in occupancy of the 4d-states (in both additives), finding an opposite trend in their filling. The most significant changes were observed in the T2Nd7 system, for which the electron occupancy in the 4d levels was modified to an excess of 1 electron/atom (after thermal treatment). The correlation between these results and magnetic features of the alloys are evidenced.
Сплавы NdyFe(86-y-x)B14Tx (T: Mo, Nb; x = 2, 4; y =7, 8) изучены методом рентгеновской абсорбционной спектроскопии. Образцы имели форму полосок, полученных методом вытягивания из расплава (в состоя- нии после закалки), а затем отожженных. Тонкая структура рентгеновских спектров поглощения спла- вов NdFeB исследована вблизи границы L3,2 Мо и Nb. Рассчитаны изменения заселенности 4d-состояний (в обеих примесях) и обнаружены противоположные тенденции в их заполнении. Наиболее существенные изменения наблюдались в системе T2Nd7, где заселенность 4d-уровня изменялась более чем на 1 элект- рон/атом (после термообработки). Корреляция между этими результатами и магнитными характерис- тиками исследованных сплавов очевидна
Fil: Bilovol, Vitaliy. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Saccone, Fabio Daniel. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Nd-Fe-B Based Magnets
Additive
Electron Occupancy
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:11336/14767
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/14767
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T AlloysЗаселенность 4d-состояний в Mo, Nb на основании анализа тонкой структуры рентгеновских спектров поглощения сплавов Nd-Fe-B-T (T: Mo, Nb) вблизи границы l3,2Bilovol, VitaliySaccone, Fabio DanielNd-Fe-B Based MagnetsAdditiveElectron Occupancyhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Samples of NdyFe(86–-y–x)B14Tx (T: Mo, Nb; x = 2, 4; y = 7, 8) alloys were studied by X-ray absorption spectroscopy. The NEXAFS spectra of NdFeB ribbons produced by the melt spinning technique (as quenched, AQ) and subsequently annealed (TT) were taken at Mo and Nb L3,2-edge. We calculated the variations in occupancy of the 4d-states (in both additives), finding an opposite trend in their filling. The most significant changes were observed in the T2Nd7 system, for which the electron occupancy in the 4d levels was modified to an excess of 1 electron/atom (after thermal treatment). The correlation between these results and magnetic features of the alloys are evidenced.Сплавы NdyFe(86-y-x)B14Tx (T: Mo, Nb; x = 2, 4; y =7, 8) изучены методом рентгеновской абсорбционной спектроскопии. Образцы имели форму полосок, полученных методом вытягивания из расплава (в состоя- нии после закалки), а затем отожженных. Тонкая структура рентгеновских спектров поглощения спла- вов NdFeB исследована вблизи границы L3,2 Мо и Nb. Рассчитаны изменения заселенности 4d-состояний (в обеих примесях) и обнаружены противоположные тенденции в их заполнении. Наиболее существенные изменения наблюдались в системе T2Nd7, где заселенность 4d-уровня изменялась более чем на 1 элект- рон/атом (после термообработки). Корреляция между этими результатами и магнитными характерис- тиками исследованных сплавов очевиднаFil: Bilovol, Vitaliy. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Saccone, Fabio Daniel. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaSpringer2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/14767Bilovol, Vitaliy; Saccone, Fabio Daniel; Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys; Springer; Journal Of Applied Spectroscopy; 81; 3; 7-2014; 499-5020021-90371573-8647enginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10812-014-9961-2info:eu-repo/semantics/altIdentifier/doi/10.1007/s10812-014-9961-2info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:28:05Zoai:ri.conicet.gov.ar:11336/14767instacron: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:34982025-10-15 15:28:06.147CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys
Заселенность 4d-состояний в Mo, Nb на основании анализа тонкой структуры рентгеновских спектров поглощения сплавов Nd-Fe-B-T (T: Mo, Nb) вблизи границы l3,2
title Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys
spellingShingle Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys
Bilovol, Vitaliy
Nd-Fe-B Based Magnets
Additive
Electron Occupancy
title_short Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys
title_full Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys
title_fullStr Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys
title_full_unstemmed Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys
title_sort Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys
dc.creator.none.fl_str_mv Bilovol, Vitaliy
Saccone, Fabio Daniel
author Bilovol, Vitaliy
author_facet Bilovol, Vitaliy
Saccone, Fabio Daniel
author_role author
author2 Saccone, Fabio Daniel
author2_role author
dc.subject.none.fl_str_mv Nd-Fe-B Based Magnets
Additive
Electron Occupancy
topic Nd-Fe-B Based Magnets
Additive
Electron Occupancy
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Samples of NdyFe(86–-y–x)B14Tx (T: Mo, Nb; x = 2, 4; y = 7, 8) alloys were studied by X-ray absorption spectroscopy. The NEXAFS spectra of NdFeB ribbons produced by the melt spinning technique (as quenched, AQ) and subsequently annealed (TT) were taken at Mo and Nb L3,2-edge. We calculated the variations in occupancy of the 4d-states (in both additives), finding an opposite trend in their filling. The most significant changes were observed in the T2Nd7 system, for which the electron occupancy in the 4d levels was modified to an excess of 1 electron/atom (after thermal treatment). The correlation between these results and magnetic features of the alloys are evidenced.
Сплавы NdyFe(86-y-x)B14Tx (T: Mo, Nb; x = 2, 4; y =7, 8) изучены методом рентгеновской абсорбционной спектроскопии. Образцы имели форму полосок, полученных методом вытягивания из расплава (в состоя- нии после закалки), а затем отожженных. Тонкая структура рентгеновских спектров поглощения спла- вов NdFeB исследована вблизи границы L3,2 Мо и Nb. Рассчитаны изменения заселенности 4d-состояний (в обеих примесях) и обнаружены противоположные тенденции в их заполнении. Наиболее существенные изменения наблюдались в системе T2Nd7, где заселенность 4d-уровня изменялась более чем на 1 элект- рон/атом (после термообработки). Корреляция между этими результатами и магнитными характерис- тиками исследованных сплавов очевидна
Fil: Bilovol, Vitaliy. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Saccone, Fabio Daniel. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Samples of NdyFe(86–-y–x)B14Tx (T: Mo, Nb; x = 2, 4; y = 7, 8) alloys were studied by X-ray absorption spectroscopy. The NEXAFS spectra of NdFeB ribbons produced by the melt spinning technique (as quenched, AQ) and subsequently annealed (TT) were taken at Mo and Nb L3,2-edge. We calculated the variations in occupancy of the 4d-states (in both additives), finding an opposite trend in their filling. The most significant changes were observed in the T2Nd7 system, for which the electron occupancy in the 4d levels was modified to an excess of 1 electron/atom (after thermal treatment). The correlation between these results and magnetic features of the alloys are evidenced.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
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/11336/14767
Bilovol, Vitaliy; Saccone, Fabio Daniel; Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys; Springer; Journal Of Applied Spectroscopy; 81; 3; 7-2014; 499-502
0021-9037
1573-8647
url http://hdl.handle.net/11336/14767
identifier_str_mv Bilovol, Vitaliy; Saccone, Fabio Daniel; Occupancy of 4d-states in T (T: Mo, Nb) from NEXAFS L3,2 Spectra of Nd-Fe-B-T Alloys; Springer; Journal Of Applied Spectroscopy; 81; 3; 7-2014; 499-502
0021-9037
1573-8647
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10812-014-9961-2
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10812-014-9961-2
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
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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 13.22299

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