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Fizika Tverdogo Tela, 2020, Volume 62, Issue 11, Pages 1847–1853
DOI: https://doi.org/10.21883/FTT.2020.11.50110.131 (Mi ftt8252) 		 
Magnetism

Generation of nonequilibrium magnetic nuclei in a rapidly growing magnetic field in Pt/Co/Ir/Co/Pt synthetic ferrimagnets

R. B. Morgunov, A. I. Bezverkhnii

Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region
Full-text PDF (383 kB)
DOI: https://doi.org/10.21883/FTT.2020.11.50110.131
Abstract: In a Pt/Co/Ir/Co/Pt synthetic ferrimagnet with perpendicular magnetic anisotropy, stochastically occurring peak of magnetic moment was detected in the rapidly increasing magnetic field of 16 kOe/s sweep rate at $T$ = 300 K. The peak arises at the coinciding switching fields between three equilibrium magnetization states. The reason of the peak is nucleation of the nonequilibrium magnetic domains in the vicinity of structural defects of the Co film, where diminished activation energy of magnetic nucleation takes place.
Keywords: synthetic ferrimagnet, perpendicular magnetic anisotropy, nonequilibrium magnetization states, exchange interaction, dynamical system.
Funding agency Grant number
Ministry of Education and Science of the Russian Federation 2644.2020.2
АААА-А19-119092390079-8
Russian Foundation for Basic Research 19-32-90128
This work was supported by the Program of the President of the Russian Federation for the state support of leading scientific schools of the Russian Federation, project no. NSh-2644.2020.2. The work was performed within the framework of the state assignment of the Institute of Problems of Chemical Physics, Russian Academy of Sciences, project no. AAAA-A19-119092390079-8.
Received: 19.06.2020
Revised: 19.06.2020
Accepted: 09.07.2020
English version:
Physics of the Solid State, 2020, Volume 64, Issue 11, Pages 2070–2076
DOI: https://doi.org/10.1134/S1063783420110219
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: R. B. Morgunov, A. I. Bezverkhnii, “Generation of nonequilibrium magnetic nuclei in a rapidly growing magnetic field in Pt/Co/Ir/Co/Pt synthetic ferrimagnets”, Fizika Tverdogo Tela, 62:11 (2020), 1847–1853; Phys. Solid State, 64:11 (2020), 2070–2076
Citation in format AMSBIB
\Bibitem{MorBez20}
\by R.~B.~Morgunov, A.~I.~Bezverkhnii
\paper Generation of nonequilibrium magnetic nuclei in a rapidly growing magnetic field in Pt/Co/Ir/Co/Pt synthetic ferrimagnets
\jour Fizika Tverdogo Tela
\yr 2020
\vol 62
\issue 11
\pages 1847--1853
\mathnet{http://mi.mathnet.ru/ftt8252}
\crossref{https://doi.org/10.21883/FTT.2020.11.50110.131}
\elib{https://elibrary.ru/item.asp?id=44257956}
\transl
\jour Phys. Solid State
\yr 2020
\vol 64
\issue 11
\pages 2070--2076
\crossref{https://doi.org/10.1134/S1063783420110219}
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