Comparative Raman scattering study of Ba₃MSb₂O₉ (M=Zn, Co and Cu)
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Comparative Raman scattering study of Ba₃MSb₂O₉ (M=Zn, Co and Cu)
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| Creator |
Glamazda, A.
Lemmens, P. Do, S.-H. Choi, K.-Y. |
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| Subject |
К 70-летию со дня рождения С.Л. Гнатченко
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| Description |
Raman spectroscopy is combined with lattice dynamic calculations to investigate the magnetic and structural properties of the 6H-perovskite compounds Ba₃MSb₂O₉ (M = Zn, Co and Cu). Unlike the nonmagnetic Ba₃ZnSb₂O₉ compound, the magnetic counterparts Ba₃MSb₂O₉ (M = Co and Cu) show both lattice anomalies for temperatures below 100 K and develop highly correlated spin states below 50 K. This is ascribed to an instability of conventional magnetic excitations for the equilateral triangular antiferromagnet Ba₃CoSb₂O₉ and a coexistence of spin-orbital liquid and random singlet state for the decorated honeycomb compound Ba₃CuSb₂O₉ containing a nearly identical volume fraction of hexagonal and orthorhombic phases. Our results demonstrate that Ba₃MSb₂O₉ provides a rich reservoir for hosting diverse magnetic and structural phases as a function of the metal ion M.
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| Date |
2018-01-19T18:52:38Z
2018-01-19T18:52:38Z 2017 |
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| Type |
Article
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| Identifier |
Comparative Raman scattering study of Ba₃MSb₂O₉ (M=Zn, Co and Cu) / A. Glamazda, P. Lemmens, S.-H. Do, K.-Y. Choi // Физика низких температур. — 2017. — Т. 43, № 5. — С. 683-691. — Бібліогр.: 22 назв. — англ.
0132-6414 PACS: 63.20.–e, 75.45.+j, 78.30.–j http://dspace.nbuv.gov.ua/handle/123456789/129491 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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