Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ
The crystal structure and magnetic properties of the La₁₋xBixMnO₃₊λ system (0⩽x⩽1;λ⩽0.08) are studied as functions of the oxygen and bismuth contents. In oxidized samples La₁₋xBixMnO₃₊λ a phase transition from a ferromagnetic state (rhombohedric phase) to a state of the spin glass type (quasitetrago...
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| Дата: | 2002 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2002
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/130236 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ / I.O. Troyanchuk, O.S. Mantytskaja, H.Szymczak, M.Yu. Shvedun // Физика низких температур. — 2002. — Т. 28, № 7. — С. 790-795. — Бібліогр.: 28 назв. — англ. |
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irk-123456789-1302362018-02-10T03:03:28Z Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ Troyanchuk, I.O. Mantytskaja, O.S. Szymczak, H. Shvedun, M.Yu. Дефекты в кристаллах The crystal structure and magnetic properties of the La₁₋xBixMnO₃₊λ system (0⩽x⩽1;λ⩽0.08) are studied as functions of the oxygen and bismuth contents. In oxidized samples La₁₋xBixMnO₃₊λ a phase transition from a ferromagnetic state (rhombohedric phase) to a state of the spin glass type (quasitetragonal phase) is observed with increase of the bismuth concentration. The reduced samples La₁₋xBixMnO₃ are weak ferromagnets down to x⩽0.6 and then transform into a ferromagnetic state. It is supposed that the Bi³⁺ ions stabilize the dx2−y2 orbitals in the nearest Mn³⁺ ions whereas the dz2 orbitals of the La³⁺ ions are stabilized. The orbitally disordered phases and dx2−y2-orbitally ordered phases are ferromagnetic, the dz2-orbitally ordered phases show antiferromagnetic ordering, and the state of the orbital glass type corresponds to a state of the spin glass type. The crystal structure and magnetic properties of the La₁₋xBixMnO₃₊λ system (0⩽x⩽1;λ⩽0.08) are studied as functions of the oxygen and bismuth contents. In oxidized samples La₁₋xBixMnO₃₊λ a phase transition from a ferromagnetic state (rhombohedric phase) to a state of the spin glass type (quasitetragonal phase) is observed with increase of the bismuth concentration. The reduced samples La₁₋xBixMnO₃ are weak ferromagnets down to x⩽0.6 and then transform into a ferromagnetic state. It is supposed that the Bi³⁺ ions stabilize the dx2−y2 orbitals in the nearest Mn³⁺ ions whereas the dz2 orbitals of the La³⁺ ions are stabilized. The orbitally disordered phases and dx2−y2-orbitally ordered phases are ferromagnetic, the dz2-orbitally ordered phases show antiferromagnetic ordering, and the state of the orbital glass type corresponds to a state of the spin glass type. 2002 Article Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ / I.O. Troyanchuk, O.S. Mantytskaja, H.Szymczak, M.Yu. Shvedun // Физика низких температур. — 2002. — Т. 28, № 7. — С. 790-795. — Бібліогр.: 28 назв. — англ. 0132-6414 PACS: 72.15.Gd, 75.30.Kz, 75.70.Pa http://dspace.nbuv.gov.ua/handle/123456789/130236 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Дефекты в кристаллах Дефекты в кристаллах |
| spellingShingle |
Дефекты в кристаллах Дефекты в кристаллах Troyanchuk, I.O. Mantytskaja, O.S. Szymczak, H. Shvedun, M.Yu. Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ Физика низких температур |
| description |
The crystal structure and magnetic properties of the La₁₋xBixMnO₃₊λ system (0⩽x⩽1;λ⩽0.08) are studied as functions of the oxygen and bismuth contents. In oxidized samples La₁₋xBixMnO₃₊λ a phase transition from a ferromagnetic state (rhombohedric phase) to a state of the spin glass type (quasitetragonal phase) is observed with increase of the bismuth concentration. The reduced samples La₁₋xBixMnO₃ are weak ferromagnets down to x⩽0.6 and then transform into a ferromagnetic state. It is supposed that the Bi³⁺ ions stabilize the dx2−y2 orbitals in the nearest Mn³⁺ ions whereas the dz2 orbitals of the La³⁺ ions are stabilized. The orbitally disordered phases and dx2−y2-orbitally ordered phases are ferromagnetic, the dz2-orbitally ordered phases show antiferromagnetic ordering, and the state of the orbital glass type corresponds to a state of the spin glass type. |
| format |
Article |
| author |
Troyanchuk, I.O. Mantytskaja, O.S. Szymczak, H. Shvedun, M.Yu. |
| author_facet |
Troyanchuk, I.O. Mantytskaja, O.S. Szymczak, H. Shvedun, M.Yu. |
| author_sort |
Troyanchuk, I.O. |
| title |
Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ |
| title_short |
Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ |
| title_full |
Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ |
| title_fullStr |
Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ |
| title_full_unstemmed |
Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ |
| title_sort |
magnetic phase transitions in the system la₁₋xbixmno₃₊λ |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2002 |
| topic_facet |
Дефекты в кристаллах |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/130236 |
| citation_txt |
Magnetic phase transitions in the system La₁₋xBixMnO₃₊λ / I.O. Troyanchuk, O.S. Mantytskaja, H.Szymczak, M.Yu. Shvedun // Физика низких температур. — 2002. — Т. 28, № 7. — С. 790-795. — Бібліогр.: 28 назв. — англ. |
| series |
Физика низких температур |
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2023-10-18T20:59:33Z |
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