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Zhurnal Tekhnicheskoi Fiziki, 2023, Volume 93, Issue 7, Pages 907–912
DOI: https://doi.org/10.21883/JTF.2023.07.55744.72-23 (Mi jtf7025) 		 
XXVII International Symposium "Nanophysics and Nanoelectronics" N. Novgorod, March 13-16, 2023
Solid State Electronics

Influence of radiation exposure on the magnetic properties of feromagnetic/IrMn films with exchange bias

D. O. Krivulinab, I. Yu. Pashen'kina, R. V. Goreva, P. A. Yuninab, M. V. Sapozhnikovab, A. V. Gruninc, S. A. Zakharovac, V. N. Leontievc

a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod, 603950 Nizhny Novgorod, Russia
b Lobachevsky State University, 603950 Nizhny Novgorod, Russia
c Federal State Unitary Enterprise "Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics", Sarov, Nizhny Novgorod region
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DOI: https://doi.org/10.21883/JTF.2023.07.55744.72-23
Abstract: In this work, the effect of the action of gamma quanta and neutrons on the magnetic properties of Ta/feromagnet/IrMn/Ta bilayer films with an exchange bias of the hysteresis loop is studied. The samples were fabricated by magnetron sputtering, and their structure was studied by small-angle X-ray reflectometry and X-ray diffractometry. The measurement of the magnetic hysteresis loops of the irradiated and non-irradiated samples was carried out by the methods of magneto-optical Kerr magnetometry. As a result, the effect of broadening of the magnetic hysteresis loop after irradiation was found. The maximum broadening of the hysteresis loop was observed in the NiFe/IrMn film under neutron irradiation; in this case, the loop width increased by more than 2.5 times. No noticeable change in the field of the exchange bias of the hysteresis loops was observed in the entire range of radiation exposure.
Keywords: ferromagnetic films, radiation exposure, coercive force, exchange bias.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation 0030-2021-0021
The irradiation of samples and the examination of their magnetic and structural properties were performed as part of the scientific program of the National Center of Physics and Mathematics, section No. 6 “Nuclear and Radiation Physics” The sample fabrication procedure was validated under the state assignment of the Institute of Applied Physics of the Russian Academy of Sciences (project 0030-2021-0021).
Received: 17.04.2023
Revised: 17.04.2023
Accepted: 17.04.2023
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: D. O. Krivulin, I. Yu. Pashen'kin, R. V. Gorev, P. A. Yunin, M. V. Sapozhnikov, A. V. Grunin, S. A. Zakharova, V. N. Leontiev, “Influence of radiation exposure on the magnetic properties of feromagnetic/IrMn films with exchange bias”, Zhurnal Tekhnicheskoi Fiziki, 93:7 (2023), 907–912
Citation in format AMSBIB
\Bibitem{KriPasGor23}
\by D.~O.~Krivulin, I.~Yu.~Pashen'kin, R.~V.~Gorev, P.~A.~Yunin, M.~V.~Sapozhnikov, A.~V.~Grunin, S.~A.~Zakharova, V.~N.~Leontiev
\paper Influence of radiation exposure on the magnetic properties of feromagnetic/IrMn films with exchange bias
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2023
\vol 93
\issue 7
\pages 907--912
\mathnet{http://mi.mathnet.ru/jtf7025}
\crossref{https://doi.org/10.21883/JTF.2023.07.55744.72-23}
\elib{https://elibrary.ru/item.asp?id=54384488}
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