Conditions for the Occurrence of Spontaneous Oscillating Magnetic Relaxation in Synthetic Pt/Co/Ir/Co/Pt Ferrimagnets
| Autor: | A. I. Bezverkhnii, R. B. Morgunov, M. V. Bakhmet’ev, O. S. Dmitriev |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Condensed matter physics Solid-state physics Triple point Perpendicular magnetic anisotropy Relaxation (NMR) Exchange interaction Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Magnetization 0103 physical sciences Zeeman energy Magnetic relaxation 010306 general physics |
| Zdroj: | Physics of the Solid State. 62:458-463 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s1063783420030142 |
| Popis: | It has been established that nonmonotonic magnetization relaxation in Pt/Co/Ir/Co/Pt synthetic ferrimagnets (SF) with perpendicular magnetic anisotropy is caused by the coincidence of two or three switching fields between stable states of the SF magnetization (double or triple point). The fields of switching between the stable states of SFs are determined by the ratio of the Zeeman energy, interlayer exchange energy, and the energies of magnetization reversal barriers of each layer, depending on the thickness of the layers and temperature. It has been shown that the selection of thickness and/or temperature enables reaching double and triple points at which the transition fields between the states coincide, which causes a nonmonotonic magnetic relaxation of SFs. |
| Databáze: | OpenAIRE |
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