Email this article Modification of Magnetic Properties of a CoPt Alloy by Ion Irradiation
- Authors: Kalentyeva I.L.1, Vikhrova O.V.1, Danilov Y.A.1, Dorokhin M.V.1, Dudin Y.A.1, Zdoroveyshchev A.V.1, Kudrin A.V.1, Temiryazeva M.P.2, Temiryazev A.G.2, Nikitov S.A.3,4,5, Sadovnikov A.V.3,4
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Affiliations:
- Research Institute for Physics and Technology, National Research Lobachevsky State University of Nizhny Novgorod
- Fryazino Branch, Kotel’nikov Institute of Radio-Engineering and Electronics, Russian Academy of Sciences
- Metamaterials Laboratory, National Research Chernyshevsky Saratov State University
- Kotel’nikov Institute of Radio-Engineering and Electronics, Russian Academy of Sciences
- Moscow Institute of Physics and Technology
- Issue: Vol 61, No 9 (2019)
- Pages: 1646-1651
- Section: Magnetism
- URL: https://bakhtiniada.ru/1063-7834/article/view/206171
- DOI: https://doi.org/10.1134/S1063783419090105
- ID: 206171
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Abstract
The effect of ion irradiation on magnetic properties of films of the ferromagnetic CoPt alloy fabricated by electron-beam evaporation has been studied. It is found that the coercive force decreases and the lateral component of the easy-magnetization axis increases as the He+ ion fluence increases from 1 × 1013 to 1 × 1016 cm–2. It is shown by magnetic-force microscopy and the Mandelstam–Brillouin spectroscopy that the formation of isolated circle domains which are magnetic skirmions in the CoPt layer is activated at certain ion-irradiation fluence (3 × 1014 cm–2).
About the authors
I. L. Kalentyeva
Research Institute for Physics and Technology, National Research Lobachevsky State University of Nizhny Novgorod
Email: vikhrova@nifti.unn.ru
Russian Federation, Nizhny Novgorod, 603950
O. V. Vikhrova
Research Institute for Physics and Technology, National Research Lobachevsky State University of Nizhny Novgorod
Author for correspondence.
Email: vikhrova@nifti.unn.ru
Russian Federation, Nizhny Novgorod, 603950
Yu. A. Danilov
Research Institute for Physics and Technology, National Research Lobachevsky State University of Nizhny Novgorod
Email: vikhrova@nifti.unn.ru
Russian Federation, Nizhny Novgorod, 603950
M. V. Dorokhin
Research Institute for Physics and Technology, National Research Lobachevsky State University of Nizhny Novgorod
Email: vikhrova@nifti.unn.ru
Russian Federation, Nizhny Novgorod, 603950
Yu. A. Dudin
Research Institute for Physics and Technology, National Research Lobachevsky State University of Nizhny Novgorod
Email: vikhrova@nifti.unn.ru
Russian Federation, Nizhny Novgorod, 603950
A. V. Zdoroveyshchev
Research Institute for Physics and Technology, National Research Lobachevsky State University of Nizhny Novgorod
Email: vikhrova@nifti.unn.ru
Russian Federation, Nizhny Novgorod, 603950
A. V. Kudrin
Research Institute for Physics and Technology, National Research Lobachevsky State University of Nizhny Novgorod
Email: vikhrova@nifti.unn.ru
Russian Federation, Nizhny Novgorod, 603950
M. P. Temiryazeva
Fryazino Branch, Kotel’nikov Institute of Radio-Engineering and Electronics, Russian Academy of Sciences
Email: vikhrova@nifti.unn.ru
Russian Federation, Fryazino, Moscow oblast, 141190
A. G. Temiryazev
Fryazino Branch, Kotel’nikov Institute of Radio-Engineering and Electronics, Russian Academy of Sciences
Email: vikhrova@nifti.unn.ru
Russian Federation, Fryazino, Moscow oblast, 141190
S. A. Nikitov
Metamaterials Laboratory, National Research Chernyshevsky Saratov State University; Kotel’nikov Institute of Radio-Engineering and Electronics, Russian Academy of Sciences; Moscow Institute of Physics and Technology
Email: vikhrova@nifti.unn.ru
Russian Federation, Saratov, 410012; Moscow, 125009; Dolgoprudny, Moscow oblast, 141701
A. V. Sadovnikov
Metamaterials Laboratory, National Research Chernyshevsky Saratov State University; Kotel’nikov Institute of Radio-Engineering and Electronics, Russian Academy of Sciences
Email: vikhrova@nifti.unn.ru
Russian Federation, Saratov, 410012; Moscow, 125009
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