Magnetic behavior of Fe-doped of multicomponent bismuth niobate pyrochlore

Two series of iron-containing solid solutions Bi2Mg1−xFexNb2O9+δ and Bi2MgNb2−2xFe2xO9−δ of pyrochlore structure were obtained by the traditional solid phase synthesis method. The electronic state and character of exchange interactions of iron atoms in solid solutions were investigated by methods of...

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Autores principales:	Zhuk Nadezhda A., Makeev Boris A., Nekipelov Sergey V., Yermolina Maria V., Fedorova Anna V., Chernykh Galina I.
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	magnetic susceptibility iron nexafs pyrochlore structural type solid solutions Technology T Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/a09e6ea2678a43918cb9f3c43456abeb
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spelling	oai:doaj.org-article:a09e6ea2678a43918cb9f3c43456abeb2021-12-05T14:11:02ZMagnetic behavior of Fe-doped of multicomponent bismuth niobate pyrochlore1605-812710.1515/rams-2021-0011https://doaj.org/article/a09e6ea2678a43918cb9f3c43456abeb2021-01-01T00:00:00Zhttps://doi.org/10.1515/rams-2021-0011https://doaj.org/toc/1605-8127Two series of iron-containing solid solutions Bi2Mg1−xFexNb2O9+δ and Bi2MgNb2−2xFe2xO9−δ of pyrochlore structure were obtained by the traditional solid phase synthesis method. The electronic state and character of exchange interactions of iron atoms in solid solutions were investigated by methods of magnetic dilution and NEXAFS-spectroscopy. According to X-ray spectroscopy and magnetic susceptibility data, iron(III) atoms are distributed mainly in octahedral positions of niobium(V) and in a dominant amount are in the charge state of Fe(III) in the form of monomers and exchange-bonded clusters mainly with antiferromagnetic type of exchange. Differences in magnetic behavior of iron-containing solid solutions of both series have been revealed. Antiferromagnetic and ferromagnetic exchange can be realized between iron atoms, which, with increasing concentration of paramagnetic atoms and averaging structure distortions, becomes less significant. The parameters of exchange interactions in clusters and distribution of iron paramagnetic atoms depending on the concentration of solid solutions have been calculated.Zhuk Nadezhda A.Makeev Boris A.Nekipelov Sergey V.Yermolina Maria V.Fedorova Anna V.Chernykh Galina I.De Gruyterarticlemagnetic susceptibilityironnexafspyrochlore structural typesolid solutionsTechnologyTChemical technologyTP1-1185ENReviews on Advanced Materials Science, Vol 60, Iss 1, Pp 38-46 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	magnetic susceptibility iron nexafs pyrochlore structural type solid solutions Technology T Chemical technology TP1-1185
spellingShingle	magnetic susceptibility iron nexafs pyrochlore structural type solid solutions Technology T Chemical technology TP1-1185 Zhuk Nadezhda A. Makeev Boris A. Nekipelov Sergey V. Yermolina Maria V. Fedorova Anna V. Chernykh Galina I. Magnetic behavior of Fe-doped of multicomponent bismuth niobate pyrochlore
description	Two series of iron-containing solid solutions Bi2Mg1−xFexNb2O9+δ and Bi2MgNb2−2xFe2xO9−δ of pyrochlore structure were obtained by the traditional solid phase synthesis method. The electronic state and character of exchange interactions of iron atoms in solid solutions were investigated by methods of magnetic dilution and NEXAFS-spectroscopy. According to X-ray spectroscopy and magnetic susceptibility data, iron(III) atoms are distributed mainly in octahedral positions of niobium(V) and in a dominant amount are in the charge state of Fe(III) in the form of monomers and exchange-bonded clusters mainly with antiferromagnetic type of exchange. Differences in magnetic behavior of iron-containing solid solutions of both series have been revealed. Antiferromagnetic and ferromagnetic exchange can be realized between iron atoms, which, with increasing concentration of paramagnetic atoms and averaging structure distortions, becomes less significant. The parameters of exchange interactions in clusters and distribution of iron paramagnetic atoms depending on the concentration of solid solutions have been calculated.
format	article
author	Zhuk Nadezhda A. Makeev Boris A. Nekipelov Sergey V. Yermolina Maria V. Fedorova Anna V. Chernykh Galina I.
author_facet	Zhuk Nadezhda A. Makeev Boris A. Nekipelov Sergey V. Yermolina Maria V. Fedorova Anna V. Chernykh Galina I.
author_sort	Zhuk Nadezhda A.
title	Magnetic behavior of Fe-doped of multicomponent bismuth niobate pyrochlore
title_short	Magnetic behavior of Fe-doped of multicomponent bismuth niobate pyrochlore
title_full	Magnetic behavior of Fe-doped of multicomponent bismuth niobate pyrochlore
title_fullStr	Magnetic behavior of Fe-doped of multicomponent bismuth niobate pyrochlore
title_full_unstemmed	Magnetic behavior of Fe-doped of multicomponent bismuth niobate pyrochlore
title_sort	magnetic behavior of fe-doped of multicomponent bismuth niobate pyrochlore
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/a09e6ea2678a43918cb9f3c43456abeb
work_keys_str_mv	AT zhuknadezhdaa magneticbehavioroffedopedofmulticomponentbismuthniobatepyrochlore AT makeevborisa magneticbehavioroffedopedofmulticomponentbismuthniobatepyrochlore AT nekipelovsergeyv magneticbehavioroffedopedofmulticomponentbismuthniobatepyrochlore AT yermolinamariav magneticbehavioroffedopedofmulticomponentbismuthniobatepyrochlore AT fedorovaannav magneticbehavioroffedopedofmulticomponentbismuthniobatepyrochlore AT chernykhgalinai magneticbehavioroffedopedofmulticomponentbismuthniobatepyrochlore
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Magnetic behavior of Fe-doped of multicomponent bismuth niobate pyrochlore

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