Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites
The influence of oxygen content on the magnetization and electrical resistivity of Ln₀.₅A₀.₅MnO₃ (Ln=La,Pr,Nd; A=Ca,Ba) manganites with the perovskite structure is investigated. It is shown that the La₀.₅Ca₀.₅MnO₃₋γ compound undergoes a sequence of transitions from an antiferromagnetic (γ=0) to a sp...
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| Дата: | 2001 |
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| Автори: | , , , , , |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2001
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/130015 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites / S.V. Trukhanov, I.O. Troyanchuk, F.P. Korshunov, V.A. Sirenko, H. Szymczak, K. Baerner // Физика низких температур. — 2001. — Т. 27, № 4. — С. 385-391. — Бібліогр.: 30 назв. — англ. |
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irk-123456789-1300152018-02-05T03:03:08Z Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites Trukhanov, S.V. Troyanchuk, I.O. Korshunov, F.P. Sirenko, V.A. Szymczak, H. Baerner, K. Специальный выпуск Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников Под редакцией В. В. Еременко и В. А. Сиренко The influence of oxygen content on the magnetization and electrical resistivity of Ln₀.₅A₀.₅MnO₃ (Ln=La,Pr,Nd; A=Ca,Ba) manganites with the perovskite structure is investigated. It is shown that the La₀.₅Ca₀.₅MnO₃₋γ compound undergoes a sequence of transitions from an antiferromagnetic (γ=0) to a spin-glass (γ=0.17) state and then to an inhomogeneous ferromagnetic (γ=0.3) state. A transition from an antiferromagnetic charge-ordered state to a ferromagnetic charge-disordered state in Nd₀.₅Ca₀.₅ MnO₃₋γ is observed as the oxygen content is reduced to where γ=0.07. The Nd₀.₅Ba₀.₅ MnO₃₋γcompound shows an increase of the Curie point from 110 K (γ=0) up to 310 K (γ=0.3). In addition, a large magnetoresistance is revealed which develops below their Curie temperature despite the absence of Mn³⁺√Mn⁴⁺ pairs. A Zener double-exchange interaction is usually used in literature to explain the magnetic and electrical properties of hole-doped perovskite manganites. The data obtained support the mechanism of superexchange interactions between magnetic moments of the manganese ions via oxygen. 2001 Article Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites / S.V. Trukhanov, I.O. Troyanchuk, F.P. Korshunov, V.A. Sirenko, H. Szymczak, K. Baerner // Физика низких температур. — 2001. — Т. 27, № 4. — С. 385-391. — Бібліогр.: 30 назв. — англ. 0132-6414 PACS: 75.30.Vn, 75.30.Cr http://dspace.nbuv.gov.ua/handle/123456789/130015 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 |
Специальный выпуск Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников Под редакцией В. В. Еременко и В. А. Сиренко Специальный выпуск Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников Под редакцией В. В. Еременко и В. А. Сиренко |
| spellingShingle |
Специальный выпуск Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников Под редакцией В. В. Еременко и В. А. Сиренко Специальный выпуск Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников Под редакцией В. В. Еременко и В. А. Сиренко Trukhanov, S.V. Troyanchuk, I.O. Korshunov, F.P. Sirenko, V.A. Szymczak, H. Baerner, K. Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites Физика низких температур |
| description |
The influence of oxygen content on the magnetization and electrical resistivity of Ln₀.₅A₀.₅MnO₃ (Ln=La,Pr,Nd; A=Ca,Ba) manganites with the perovskite structure is investigated. It is shown that the La₀.₅Ca₀.₅MnO₃₋γ compound undergoes a sequence of transitions from an antiferromagnetic (γ=0) to a spin-glass (γ=0.17) state and then to an inhomogeneous ferromagnetic (γ=0.3) state. A transition from an antiferromagnetic charge-ordered state to a ferromagnetic charge-disordered state in Nd₀.₅Ca₀.₅ MnO₃₋γ is observed as the oxygen content is reduced to where γ=0.07. The Nd₀.₅Ba₀.₅ MnO₃₋γcompound shows an increase of the Curie point from 110 K (γ=0) up to 310 K (γ=0.3). In addition, a large magnetoresistance is revealed which develops below their Curie temperature despite the absence of Mn³⁺√Mn⁴⁺ pairs. A Zener double-exchange interaction is usually used in literature to explain the magnetic and electrical properties of hole-doped perovskite manganites. The data obtained support the mechanism of superexchange interactions between magnetic moments of the manganese ions via oxygen. |
| format |
Article |
| author |
Trukhanov, S.V. Troyanchuk, I.O. Korshunov, F.P. Sirenko, V.A. Szymczak, H. Baerner, K. |
| author_facet |
Trukhanov, S.V. Troyanchuk, I.O. Korshunov, F.P. Sirenko, V.A. Szymczak, H. Baerner, K. |
| author_sort |
Trukhanov, S.V. |
| title |
Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites |
| title_short |
Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites |
| title_full |
Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites |
| title_fullStr |
Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites |
| title_full_unstemmed |
Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites |
| title_sort |
effect of oxygen content on magnetization and magnetoresistance properties of cmr manganites |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2001 |
| topic_facet |
Специальный выпуск Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников Под редакцией В. В. Еременко и В. А. Сиренко |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/130015 |
| citation_txt |
Effect of oxygen content on magnetization and magnetoresistance properties of CMR manganites / S.V. Trukhanov, I.O. Troyanchuk, F.P. Korshunov, V.A. Sirenko, H. Szymczak, K. Baerner // Физика низких температур. — 2001. — Т. 27, № 4. — С. 385-391. — Бібліогр.: 30 назв. — англ. |
| series |
Физика низких температур |
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| first_indexed |
2023-10-18T20:59:10Z |
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2023-10-18T20:59:10Z |
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