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Chelyabinskiy Fiziko-Matematicheskiy Zhurnal, 2021, Volume 6, Issue 4, Pages 475–484
DOI: https://doi.org/10.47475/2500-0101-2021-16407 (Mi chfmj261) 		 
Physics

Ultrafast reorientation of nanoparticles antiferromagnetism vector by alternating magnetic field

L. N. Kotova, L. S. Nosova, V. S. Vlasova, A. V. Golova, D. A. Pleshevab, D. A. Kuzmincd, I. V. Bychkovcd, V. V. Temnove

a Pitirim Sorokin Syktyvkar State University, Syktyvkar, Russia
b Saint-Petersburg State Forest Technical University named after S.M. Kirov, Saint-Petersburg, Russia
c Chelyabinsk State UniversityChelyabinsk State University, Chelyabinsk, Russia
d South Ural State University (National Research University), Chelyabinsk, Russia
e Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
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DOI: https://doi.org/10.47475/2500-0101-2021-16407
Abstract: The phenomenon of reorientation of the antiferromagnetic vector in single-domain nanoparticles, which occurs under the action of radio pulses of a magnetic field, covering the resonance region, is investigated. The influence of the damping parameter of a magnet, amplitude, frequency, and direction of an alternating magnetic field on the conditions for reorientation of the antiferromagnetic vector in nanoparticles is studied. The threshold amplitudes and frequencies of the alternating magnetic field, above which reorientation is possible, have been determined. On the frequency dependences of the threshold field amplitude, regions of minima are revealed that can be used to significantly reduce the field amplitude required for reorientation of the antiferromagnetic vector in nanoparticles. It is shown that using a certain ordering of antiferromagnetic nanoparticles in a dielectric matrix, ultrafast recording devices can be created.
Keywords: antiferromagnetism vector, reorientation, radio field pulse, nanoparticle.
Funding agency Grant number
Russian Science Foundation 21-72-20048
The article was prepared with the financial support of the Russian Science Foundation (project 21-72-20048).
Received: 18.07.2021
Revised: 12.11.2021
Document Type: Article
UDC: 537.86
Language: Russian
Citation: L. N. Kotov, L. S. Nosov, V. S. Vlasov, A. V. Golov, D. A. Pleshev, D. A. Kuzmin, I. V. Bychkov, V. V. Temnov, “Ultrafast reorientation of nanoparticles antiferromagnetism vector by alternating magnetic field”, Chelyab. Fiz.-Mat. Zh., 6:4 (2021), 475–484
Citation in format AMSBIB
\Bibitem{KotNosVla21}
\by L.~N.~Kotov, L.~S.~Nosov, V.~S.~Vlasov, A.~V.~Golov, D.~A.~Pleshev, D.~A.~Kuzmin, I.~V.~Bychkov, V.~V.~Temnov
\paper Ultrafast reorientation
of nanoparticles antiferromagnetism vector by alternating magnetic field
\jour Chelyab. Fiz.-Mat. Zh.
\yr 2021
\vol 6
\issue 4
\pages 475--484
\mathnet{http://mi.mathnet.ru/chfmj261}
\crossref{https://doi.org/10.47475/2500-0101-2021-16407}
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