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This article is cited in 2 scientific papers (total in 2 papers)
Excitation of nonlinear spin oscillations in an antiferromagnet under the action of pulsed terahertz pumping
A. R. Safinab, M. Logunova, S. A. Nikitovac a Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow
b National Research University "Moscow Power Engineering Institute"
c Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
Abstract:
We present a model of excitation of nonlinear spin oscillations in an antiferromagnet under the action of terahertz pulses of an electromagnetic field. It is shown that, with increasing pumping pulse amplitude, the spin system response increases linearly in the fundamental (resonant) quasi-ferromagnetic mode and quadratically in the second harmonic. We have compared the theoretically obtained dependences of the intensities of the sample response amplitudes for the fundamental mode and the second harmonic with the experimental ones. The comparison demonstrates the applicability of the developed method of analyzing dynamic processes in antiferromagnets occurring under the action of terahertz electromagnetic pulses.
Received: 03.09.2018
Citation:
A. R. Safin, M. Logunov, S. A. Nikitov, “Excitation of nonlinear spin oscillations in an antiferromagnet under the action of pulsed terahertz pumping”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 44:24 (2018), 103–111; Tech. Phys. Lett., 44:12 (2018), 1167–1170
Linking options:
https://www.mathnet.ru/eng/pjtf5603 https://www.mathnet.ru/eng/pjtf/v44/i24/p103
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