Antiferromagnet–ferromagnet transition in the cobaltites
The three series oxygen-deficient cobaltites La₀.₅Ba₀.₅CoO₃₋δ, LnBaCo₂O₅.₅ and Sr₂YCo₄O₁₀.₅ have been
 studied. It has been shown that La₀.₅Ba₀.₅CoO₃ is an insulating ferromagnet whereas La₀.₅Ba₀.₅CoO₂.₇₅ is a pure
 antiferromagnet in which the oxygen vacancies are disordered. The ox...
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| Опубліковано в: : | Физика низких температур |
|---|---|
| Дата: | 2012 |
| Автори: | , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2012
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/117271 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Antiferromagnet–ferromagnet transition in the cobaltites / I.O. Troyanchuk, M.V. Bushinsky, D.V. Karpinsky // Физика низких температур. — 2012. — Т. 38, № 7. — С. 833-841. — Бібліогр.: 53 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862543079938981888 |
|---|---|
| author | Troyanchuk, I.O. Bushinsky, M.V. Karpinsky, D.V. Sirenko, V.A. |
| author_facet | Troyanchuk, I.O. Bushinsky, M.V. Karpinsky, D.V. Sirenko, V.A. |
| citation_txt | Antiferromagnet–ferromagnet transition in the cobaltites / I.O. Troyanchuk, M.V. Bushinsky, D.V. Karpinsky // Физика низких температур. — 2012. — Т. 38, № 7. — С. 833-841. — Бібліогр.: 53 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The three series oxygen-deficient cobaltites La₀.₅Ba₀.₅CoO₃₋δ, LnBaCo₂O₅.₅ and Sr₂YCo₄O₁₀.₅ have been
studied. It has been shown that La₀.₅Ba₀.₅CoO₃ is an insulating ferromagnet whereas La₀.₅Ba₀.₅CoO₂.₇₅ is a pure
antiferromagnet in which the oxygen vacancies are disordered. The oxygen-vacancies ordering leads to appearance
of the ferromagnetic component apparently due to a formation of the noncollinear magnetic structure. The
antiferromagnet–“ferromagnet” transition is accompanied by a giant magnetoresistance. It is suggested that in
the ferromagnetic oxidized compounds Co³⁺ and Co⁴⁺ ions adopt intermediate spin state whereas for antiferromagnetic
(Co⁴⁺-free) compositions Co³⁺ ions have high-spin state (pyramids CoO₅) and dominant low-spin state
(octahedra CoO₆). In both ferromagnetic and antiferromagnetic compounds the superexchange via oxygen plays
an essential role in a formation of the magnetic properties.
|
| first_indexed | 2025-11-24T20:17:21Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-117271 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-24T20:17:21Z |
| publishDate | 2012 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Troyanchuk, I.O. Bushinsky, M.V. Karpinsky, D.V. Sirenko, V.A. 2017-05-21T17:19:48Z 2017-05-21T17:19:48Z 2012 Antiferromagnet–ferromagnet transition in the cobaltites / I.O. Troyanchuk, M.V. Bushinsky, D.V. Karpinsky // Физика низких температур. — 2012. — Т. 38, № 7. — С. 833-841. — Бібліогр.: 53 назв. — англ. 0132-6414 PACS: 75.50.Dd, 75.30.–m, 75.60.Ej https://nasplib.isofts.kiev.ua/handle/123456789/117271 The three series oxygen-deficient cobaltites La₀.₅Ba₀.₅CoO₃₋δ, LnBaCo₂O₅.₅ and Sr₂YCo₄O₁₀.₅ have been
 studied. It has been shown that La₀.₅Ba₀.₅CoO₃ is an insulating ferromagnet whereas La₀.₅Ba₀.₅CoO₂.₇₅ is a pure
 antiferromagnet in which the oxygen vacancies are disordered. The oxygen-vacancies ordering leads to appearance
 of the ferromagnetic component apparently due to a formation of the noncollinear magnetic structure. The
 antiferromagnet–“ferromagnet” transition is accompanied by a giant magnetoresistance. It is suggested that in
 the ferromagnetic oxidized compounds Co³⁺ and Co⁴⁺ ions adopt intermediate spin state whereas for antiferromagnetic
 (Co⁴⁺-free) compositions Co³⁺ ions have high-spin state (pyramids CoO₅) and dominant low-spin state
 (octahedra CoO₆). In both ferromagnetic and antiferromagnetic compounds the superexchange via oxygen plays
 an essential role in a formation of the magnetic properties. The authors would like to acknowledge the financial
 support of the BRFFI (Grant Nos. T11D-003). en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Магнетизм Antiferromagnet–ferromagnet transition in the cobaltites Article published earlier |
| spellingShingle | Antiferromagnet–ferromagnet transition in the cobaltites Troyanchuk, I.O. Bushinsky, M.V. Karpinsky, D.V. Sirenko, V.A. Магнетизм |
| title | Antiferromagnet–ferromagnet transition in the cobaltites |
| title_full | Antiferromagnet–ferromagnet transition in the cobaltites |
| title_fullStr | Antiferromagnet–ferromagnet transition in the cobaltites |
| title_full_unstemmed | Antiferromagnet–ferromagnet transition in the cobaltites |
| title_short | Antiferromagnet–ferromagnet transition in the cobaltites |
| title_sort | antiferromagnet–ferromagnet transition in the cobaltites |
| topic | Магнетизм |
| topic_facet | Магнетизм |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/117271 |
| work_keys_str_mv | AT troyanchukio antiferromagnetferromagnettransitioninthecobaltites AT bushinskymv antiferromagnetferromagnettransitioninthecobaltites AT karpinskydv antiferromagnetferromagnettransitioninthecobaltites AT sirenkova antiferromagnetferromagnettransitioninthecobaltites |