Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics
Ceramics samples of La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) with perovskite structure have been studied by neutron diffraction method, magnetometry and magnetoresistance measurements. Structural data testify a partial order of the Ni and Mn ions in all the compounds in spite of chemical substitution of t...
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| Дата: | 2017 |
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| Автори: | , , , , , |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2017
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| Назва видання: | Физика низких температур |
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| Цитувати: | Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics / I.O. Troyanchuk, D.V. Karpinsky, M.V. Bushinsky, V.A. Sirenko, V.V. Sikolenko, A. Franz // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1219-1223. — Бібліогр.: 13 назв. — англ. |
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irk-123456789-1751402021-01-31T01:27:00Z Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics Troyanchuk, I.O. Karpinsky, D.V. Bushinsky, M.V. Sirenko, V.A. Sikolenko, V.V. Franz, A. Low dimensionality and inhomogeneity effects in quantum matter Ceramics samples of La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) with perovskite structure have been studied by neutron diffraction method, magnetometry and magnetoresistance measurements. Structural data testify a partial order of the Ni and Mn ions in all the compounds in spite of chemical substitution of the La³⁺ ions by Sr²⁺ ones and an increase of the oxidation state of the Ni ions from 2+ towards to 3+ one. Magnetic structure of the compounds changes from ferromagnetic one (specific for the compound with x = 0) to antiferromagnetic (compounds with x ≥ 0.1) while the temperature of a transition into paramagnetic state remains about 270 K for all the samples. Magnetoresistance gradually decreases with temperature increase and strontium content. The results are discussed assuming nearly equal ferromagnetic and antiferromagnetic components of the superexchange interaction Ni²⁺–O–Mn⁴⁺ while the interaction between Ni³⁺ and Mn⁴ ions is considered to be strongly antiferromagnetic. 2017 Article Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics / I.O. Troyanchuk, D.V. Karpinsky, M.V. Bushinsky, V.A. Sirenko, V.V. Sikolenko, A. Franz // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1219-1223. — Бібліогр.: 13 назв. — англ. 0132-6414 PACS: 61.05.F–, 75.50.Dd, 75.30.Et, 75.60.Ej http://dspace.nbuv.gov.ua/handle/123456789/175140 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 |
Low dimensionality and inhomogeneity effects in quantum matter Low dimensionality and inhomogeneity effects in quantum matter |
| spellingShingle |
Low dimensionality and inhomogeneity effects in quantum matter Low dimensionality and inhomogeneity effects in quantum matter Troyanchuk, I.O. Karpinsky, D.V. Bushinsky, M.V. Sirenko, V.A. Sikolenko, V.V. Franz, A. Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics Физика низких температур |
| description |
Ceramics samples of La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) with perovskite structure have been studied by neutron diffraction method, magnetometry and magnetoresistance measurements. Structural data testify a partial order of the Ni and Mn ions in all the compounds in spite of chemical substitution of the La³⁺ ions by Sr²⁺ ones and an increase of the oxidation state of the Ni ions from 2+ towards to 3+ one. Magnetic structure of the compounds changes from ferromagnetic one (specific for the compound with x = 0) to antiferromagnetic (compounds with x ≥ 0.1) while the temperature of a transition into paramagnetic state remains about 270 K for all the samples. Magnetoresistance gradually decreases with temperature increase and strontium content. The results are discussed assuming nearly equal ferromagnetic and antiferromagnetic components of the superexchange interaction Ni²⁺–O–Mn⁴⁺ while the interaction between Ni³⁺ and Mn⁴ ions is considered to be strongly antiferromagnetic. |
| format |
Article |
| author |
Troyanchuk, I.O. Karpinsky, D.V. Bushinsky, M.V. Sirenko, V.A. Sikolenko, V.V. Franz, A. |
| author_facet |
Troyanchuk, I.O. Karpinsky, D.V. Bushinsky, M.V. Sirenko, V.A. Sikolenko, V.V. Franz, A. |
| author_sort |
Troyanchuk, I.O. |
| title |
Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics |
| title_short |
Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics |
| title_full |
Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics |
| title_fullStr |
Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics |
| title_full_unstemmed |
Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics |
| title_sort |
antiferromagnet-ferromagnet transition in la₁–xsrxmn₀.₅ni₀.₅o₃ (0 ≤ x ≤ 0.2) ceramics |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2017 |
| topic_facet |
Low dimensionality and inhomogeneity effects in quantum matter |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/175140 |
| citation_txt |
Antiferromagnet-ferromagnet transition in La₁–xSrxMn₀.₅Ni₀.₅O₃ (0 ≤ x ≤ 0.2) ceramics / I.O. Troyanchuk, D.V. Karpinsky, M.V. Bushinsky, V.A. Sirenko, V.V. Sikolenko, A. Franz // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1219-1223. — Бібліогр.: 13 назв. — англ. |
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Физика низких температур |
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