Synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites BaLaMSbO6, with M = Mn, Co and Ni
Double perovskites BaLaMnSbO6, BaLaCoSbO6 and BaLaNiSbO6, were synthesized by conventional ceramic method in air, as polycrystalline powders. The Mn and Ni compounds belong to the I 2/m monoclinic space group, while the Co perovskite belongs to the I 4/m tetragonal space group. Effective presence of Mn2+ has been well established by X-ray emission spectroscopy for BaLaMnSbO6, and there is no evidence of Mn3+. BaLaCoSbO6 and BaLaNiSbO6 only show the expected 3D-antiferromagnetic behavior typical of super-superexchange interactions, while BaLaMnSbO6 displays signs of superparamagnetism in the 40–160 K range, which arises from unbalanced antiferromagnetism inside nanoclusters formed by regions which are rich in Mn2+–O2−–Mn2+ paths. Neutron powder diffraction data for BaLaMnSbO6 reveals that at 3 K, only long range order antiferromagnetic arrangement of Mn2+ spins on 2d octahedral sites is obtained.
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Subjects: | Double perovskites, Magnetic properties, X-ray emission spectroscopy, Neutron powder diffraction, |
Online Access: | http://hdl.handle.net/11086/26684 http://dx.doi.org/10.1016/j.jallcom.2014.04.013 http://dx.doi.org/10.1016/j.jallcom.2014.04.013 |
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dig-unc-ar-11086-266842022-10-13T11:07:49Z Synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites BaLaMSbO6, with M = Mn, Co and Ni Blanco, M. Cecilia De Paoli, Juan M. Ceppi, Sergio Tirao, Germán Alfredo Nassif, Vivian M. Guimpel, J. Carbonio, Raúl E. Double perovskites Magnetic properties X-ray emission spectroscopy Neutron powder diffraction Double perovskites BaLaMnSbO6, BaLaCoSbO6 and BaLaNiSbO6, were synthesized by conventional ceramic method in air, as polycrystalline powders. The Mn and Ni compounds belong to the I 2/m monoclinic space group, while the Co perovskite belongs to the I 4/m tetragonal space group. Effective presence of Mn2+ has been well established by X-ray emission spectroscopy for BaLaMnSbO6, and there is no evidence of Mn3+. BaLaCoSbO6 and BaLaNiSbO6 only show the expected 3D-antiferromagnetic behavior typical of super-superexchange interactions, while BaLaMnSbO6 displays signs of superparamagnetism in the 40–160 K range, which arises from unbalanced antiferromagnetism inside nanoclusters formed by regions which are rich in Mn2+–O2−–Mn2+ paths. Neutron powder diffraction data for BaLaMnSbO6 reveals that at 3 K, only long range order antiferromagnetic arrangement of Mn2+ spins on 2d octahedral sites is obtained. http://www.sciencedirect.com/science/article/pii/S0925838814008081 publishedVersion Fil: Blanco, M. Cecilia. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Fisicoquímica; Argentina. Fil: Blanco, M. Cecilia. Universidad Nacional de Córdoba. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: Blanco, M. Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: De Paoli, Juan M. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Fisicoquímica; Argentina. Fil: De Paoli, Juan M. Universidad Nacional de Córdoba. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: De Paoli, Juan M. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: Carbonio, Raúl E. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Fisicoquímica; Argentina. Fil: Carbonio, Raúl E. Universidad Nacional de Córdoba. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: Carbonio, Raúl E. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: Ceppi, Sergio. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Ceppi, Sergio. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Ceppi, Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Tirao, Germán Alfredo. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Tirao, Germán Alfredo. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Tirao, Germán Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Nassif, Vivian M. Institut Néel, CNRS et Université Joseph Fourier; France Fil: Guimpel, J. Instituto Balseiro; Argentina Fil: Guimpel, J. Raúl E. Centro Atómico Bariloche; Argentina Química Inorgánica y Nuclear 2022-06-28T18:29:13Z 2014 article http://hdl.handle.net/11086/26684 http://dx.doi.org/10.1016/j.jallcom.2014.04.013 http://dx.doi.org/10.1016/j.jallcom.2014.04.013 eng Attribution-NonCommercial-NoDerivatives 4.0 International restrictedAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Electrónico y/o Digital ISSN: 0925-8388 |
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Double perovskites Magnetic properties X-ray emission spectroscopy Neutron powder diffraction Double perovskites Magnetic properties X-ray emission spectroscopy Neutron powder diffraction |
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Double perovskites Magnetic properties X-ray emission spectroscopy Neutron powder diffraction Double perovskites Magnetic properties X-ray emission spectroscopy Neutron powder diffraction Blanco, M. Cecilia De Paoli, Juan M. Ceppi, Sergio Tirao, Germán Alfredo Nassif, Vivian M. Guimpel, J. Carbonio, Raúl E. Synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites BaLaMSbO6, with M = Mn, Co and Ni |
description |
Double perovskites BaLaMnSbO6, BaLaCoSbO6 and BaLaNiSbO6, were synthesized by conventional ceramic method in air, as polycrystalline powders. The Mn and Ni compounds belong to the I 2/m monoclinic space group, while the Co perovskite belongs to the I 4/m tetragonal space group. Effective presence of Mn2+ has been well established by X-ray emission spectroscopy for BaLaMnSbO6, and there is no evidence of Mn3+. BaLaCoSbO6 and BaLaNiSbO6 only show the expected 3D-antiferromagnetic behavior typical of super-superexchange interactions, while BaLaMnSbO6 displays signs of superparamagnetism in the 40–160 K range, which arises from unbalanced antiferromagnetism inside nanoclusters formed by regions which are rich in Mn2+–O2−–Mn2+ paths. Neutron powder diffraction data for BaLaMnSbO6 reveals that at 3 K, only long range order antiferromagnetic arrangement of Mn2+ spins on 2d octahedral sites is obtained. |
format |
article |
topic_facet |
Double perovskites Magnetic properties X-ray emission spectroscopy Neutron powder diffraction |
author |
Blanco, M. Cecilia De Paoli, Juan M. Ceppi, Sergio Tirao, Germán Alfredo Nassif, Vivian M. Guimpel, J. Carbonio, Raúl E. |
author_facet |
Blanco, M. Cecilia De Paoli, Juan M. Ceppi, Sergio Tirao, Germán Alfredo Nassif, Vivian M. Guimpel, J. Carbonio, Raúl E. |
author_sort |
Blanco, M. Cecilia |
title |
Synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites BaLaMSbO6, with M = Mn, Co and Ni |
title_short |
Synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites BaLaMSbO6, with M = Mn, Co and Ni |
title_full |
Synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites BaLaMSbO6, with M = Mn, Co and Ni |
title_fullStr |
Synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites BaLaMSbO6, with M = Mn, Co and Ni |
title_full_unstemmed |
Synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites BaLaMSbO6, with M = Mn, Co and Ni |
title_sort |
synthesis, structural characterization and magnetic properties of the monoclinic ordered double perovskites balamsbo6, with m = mn, co and ni |
url |
http://hdl.handle.net/11086/26684 http://dx.doi.org/10.1016/j.jallcom.2014.04.013 http://dx.doi.org/10.1016/j.jallcom.2014.04.013 |
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