Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating
Single crystals of spinel Co₂TiO₄, CoTiO₃ of ilmenite structure and pseudobrookite CoTi₂O₅ were grown by means of zone melting equipment URN-2-ZM. The growth processes were performed in an air atmosphere with a speed ∼10 mm/h and a final annealing of the crystal at temperature of 1250 °C. Co₂TiO₄ an...
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Дата: | 2017 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2017
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Цитувати: | Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating / A.M. Balbashov, A.A. Balbashov, V.Y. Ivanov, L.D. Iskhakova, M.E. Voronchikhina // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1200-1206. — Бібліогр.: 12 назв. — англ. |
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irk-123456789-1751262021-01-31T01:26:54Z Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating Balbashov, A.M. Mukhin, A.A. Ivanov, V.Y. Iskhakova, L.D. Voronchikhina, M.E. Low dimensionality and inhomogeneity effects in quantum matter Single crystals of spinel Co₂TiO₄, CoTiO₃ of ilmenite structure and pseudobrookite CoTi₂O₅ were grown by means of zone melting equipment URN-2-ZM. The growth processes were performed in an air atmosphere with a speed ∼10 mm/h and a final annealing of the crystal at temperature of 1250 °C. Co₂TiO₄ and CoTi₂O₅ crystals were obtained with a diameter of 12–15 mm and length up to 60 mm, being free of any other phase inclusions and cracks. However, in the CoTiO₃ crystals some controversial features were found: x-ray Laue analysis indicated high-structure perfection while an electronic microscopy revealed small amount of second phase inclusions in contradiction to known phase diagram of this system. Electrical and magnetic properties of grown Co₂TiO₄ and CoTiO₃ single crystals were studied. Semiconducting behavior of the Co₂TiO₄ was established with the energy gap of ∼1.3 eV. No magnetic anisotropy was found in the cubic Co₂TiO₄ single crystals showing a magnetic behavior similar to polycrystals. The rhombohedral CoTiO₃ crystals revealed a magnetic behavior of an easy plane antiferromagnet with a significant anisotropy of the transverse magnetic susceptibilities along and perpendicular to the trigonal c axis. 2017 Article Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating / A.M. Balbashov, A.A. Balbashov, V.Y. Ivanov, L.D. Iskhakova, M.E. Voronchikhina // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1200-1206. — Бібліогр.: 12 назв. — англ. 0132-6414 PACS: 75.47.Lx, 75.47.Pq http://dspace.nbuv.gov.ua/handle/123456789/175126 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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English |
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Low dimensionality and inhomogeneity effects in quantum matter Low dimensionality and inhomogeneity effects in quantum matter |
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Low dimensionality and inhomogeneity effects in quantum matter Low dimensionality and inhomogeneity effects in quantum matter Balbashov, A.M. Mukhin, A.A. Ivanov, V.Y. Iskhakova, L.D. Voronchikhina, M.E. Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating Физика низких температур |
description |
Single crystals of spinel Co₂TiO₄, CoTiO₃ of ilmenite structure and pseudobrookite CoTi₂O₅ were grown by means of zone melting equipment URN-2-ZM. The growth processes were performed in an air atmosphere with a speed ∼10 mm/h and a final annealing of the crystal at temperature of 1250 °C. Co₂TiO₄ and CoTi₂O₅ crystals were obtained with a diameter of 12–15 mm and length up to 60 mm, being free of any other phase inclusions and cracks. However, in the CoTiO₃ crystals some controversial features were found: x-ray Laue analysis indicated high-structure perfection while an electronic microscopy revealed small amount of second phase inclusions in contradiction to known phase diagram of this system. Electrical and magnetic properties of grown Co₂TiO₄ and CoTiO₃ single crystals were studied. Semiconducting behavior of the Co₂TiO₄ was established with the energy gap of ∼1.3 eV. No magnetic anisotropy was found in the cubic Co₂TiO₄ single crystals showing a magnetic behavior similar to polycrystals. The rhombohedral CoTiO₃ crystals revealed a magnetic behavior of an easy plane antiferromagnet with a significant anisotropy of the transverse magnetic susceptibilities along and perpendicular to the trigonal c axis. |
format |
Article |
author |
Balbashov, A.M. Mukhin, A.A. Ivanov, V.Y. Iskhakova, L.D. Voronchikhina, M.E. |
author_facet |
Balbashov, A.M. Mukhin, A.A. Ivanov, V.Y. Iskhakova, L.D. Voronchikhina, M.E. |
author_sort |
Balbashov, A.M. |
title |
Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating |
title_short |
Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating |
title_full |
Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating |
title_fullStr |
Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating |
title_full_unstemmed |
Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating |
title_sort |
electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating |
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/123456789/175126 |
citation_txt |
Electric and magnetic properties of titanium-cobalt-oxide single crystals produced by floating zone melting with light heating / A.M. Balbashov, A.A. Balbashov, V.Y. Ivanov, L.D. Iskhakova, M.E. Voronchikhina // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1200-1206. — Бібліогр.: 12 назв. — англ. |
series |
Физика низких температур |
work_keys_str_mv |
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first_indexed |
2023-10-18T22:38:06Z |
last_indexed |
2023-10-18T22:38:06Z |
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