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http://hdl.handle.net/10637/147773D to 2D Magnetic Ordering of Fe3+ Oxides Induced by Their Layered Perovskite Structure
| Título : | 3D to 2D Magnetic Ordering of Fe3+ Oxides Induced by Their Layered Perovskite Structure |
| Autor : | Martínez de Irujo-Labalde, Xabier Amador Elizondo, Ulises Julio Ritter, Clemens Goto, Masato Amano Patino, Midori Shimakawa, Yuichi García-Martín, Susana |
| Materias: | Cations; Chemical structure; Crystal structure; Magnetic properties; Oxides |
| Editorial : | American Chemical Society |
| Citación : | Xabier Martínez de Irujo-Labalde, Ulises Amador, Clemens Ritter, Masato Goto, Midori Amano Patino, Yuichi Shimakawa, and Susana García-Martín , 3D to 2D Magnetic Ordering of Fe3+ Oxides Induced by Their Layered Perovskite Structure, Inorganic Chemistry 2021 60 (11), 8027-8034 DOI: 10.1021/acs.inorgchem.1c00529 |
| Resumen : | The antiferromagnetic behavior of Fe3+ oxides of composition RE1.2Ba1.2Ca0.6Fe3O8, RE2.2Ba3.2Ca2.6Fe8O21, and REBa2Ca2Fe5O13 (RE = Gd, Tb) is highly influenced by the type of oxygen polyhedron around the Fe3+ cations and their ordering, which is coupled with the layered RE/Ba/Ca arrangement within the perovskite-related structure. Determination of the magnetic structures reveals different magnetic moments associated with Fe3+ spins in the different oxygen polyhedra (octahedron, tetrahedron, and square pyramid). The structural aspects impact on the strength of the Fe-O-Fe superexchange interactions and, therefore, on the Néel temperature (TN) of the compounds. The oxides present an interesting transition from three-dimensional (3D) to two-dimensional (2D) magnetic behavior above TN. The 2D magnetic interactions are stronger within the FeO6 octahedra layers than in the FeO4 tetrahedra layers. |
| URI : | http://hdl.handle.net/10637/14777 |
| Derechos: | OpenAccess http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es |
| ISSN : | 1520-510X |
| Fecha de publicación : | 19-may-2021 |
| Centro : | Universidad San Pablo-CEU |
| Aparece en las colecciones: | Facultad de Farmacia |
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