Microwave absorption in the frustrated ferrimagnet Cu₂OSeO₃
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Microwave absorption in the frustrated ferrimagnet Cu₂OSeO₃
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| Creator |
Kobets, M.I.
Dergachev, K.G. Khatsko, E.N. Rykova, A.I. Lemmens, P. Wulferding, D. Berger, H. |
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| Subject |
Низкотемпеpатуpный магнетизм
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| Description |
The resonance properties of a new Cu₂OSeO₃ ferrimagnet have been investigated in a wide range of frequencies (17–142 GHz) at liquid helium temperature. The resonance data were used to plot the frequencyfield dependence of the ferrimagnetic spectrum described within the model of an anisotropic two-sublattice ferrimagnet. The effective magnetic anisotropy corresponding to the gap in the spin wave spectrum has been estimated (3 GHz). It is found that the spectrum has a multicomponent structure which is due to the diversity of the types of magnetization precession. As the amplitude of the high-frequency magnetic field increased, an additional absorption was observed in the external magnetic field lower than the field of the main resonance. The detected additional absorption corresponds to the nonuniform nonlinear parametric resonance, connected with nonuniformity of magnetic structure in the ferrimagnetic crystal Cu₂OSeO₃.
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| Date |
2017-05-18T05:34:53Z
2017-05-18T05:34:53Z 2010 |
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| Type |
Article
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| Identifier |
Microwave absorption in the frustrated ferrimagnet Cu₂OSeO₃ / M.I. Kobets, K.G. Dergachev, E.N. Khatsko, A.I. Rykova, P. Lemmens, D. Wulferding, H. Berger // Физика низких температур. — 2010. — Т. 36, № 2. — С. 223-226. — Бібліогр.: 10 назв. — англ.
0132-6414 PACS: 76.50.+g, 75.50.Ee http://dspace.nbuv.gov.ua/handle/123456789/116899 |
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| Language |
en
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| Relation |
Физика низких температур
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