Ultrafast Spin Dynamics in the Iron Borate Easy-Plane Weak Ferromagnet
| Autor: | D. I. Plokhov, Alexey Kimel, K. A. Zvezdin, A. K. Zvezdin |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Condensed matter physics General Physics and Astronomy Resonance 01 natural sciences Pulse (physics) Amplitude Ferromagnetism Electric field Spectroscopy of Solids and Interfaces 0103 physical sciences Condensed Matter::Strongly Correlated Electrons 010306 general physics Ultrashort pulse Excitation Spin-½ |
| Zdroj: | Journal of Experimental and Theoretical Physics, 131, 130-138 Journal of Experimental and Theoretical Physics, 131, pp. 130-138 |
| ISSN: | 1063-7761 |
| DOI: | 10.1134/S1063776120070195 |
| Popis: | Ultrafast processes of the spin dynamics in iron borate FeBO3 are considered theoretically; the mechanisms responsible for excitation of quasi-ferromagnetic as well as quasi-antiferromagnetic spin resonance modes by a one-period terahertz pulse are indicated. In full agreement with experimental observations [27], the excitation of the high-frequency quasi-antiferromagnetic mode is resonant by nature, and its amplitude is a linear function of the electric field of the terahertz pulse. The amplitude of the low-frequency quasi-ferromagnetic mode is a quadratic function of the electric field of the pulse, and the excitation of this mode is governed by the mechanism of the inverse Cotton–Mouton effect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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