Giant Magnetoresistance and Hysteresis Phenomena in CoFe/Cu Superlattices with Highly Perfect Crystallographic Texture
- Authors: Bannikova N.S.1, Milyaev M.A.1,2, Naumova L.I.1,2, Patrakov E.I.1, Proglyado V.V.1, Kamenskii I.Y.1, Ryabukhina M.V.1, Ustinov V.V.1,2
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Ural Federal University Named after the First President of Russia B.N. Yeltsin, Institute of Natural Sciences and Mathematics
- Issue: Vol 119, No 11 (2018)
- Pages: 1073-1078
- Section: Electrical and Magnetic Properties
- URL: https://journals.rcsi.science/0031-918X/article/view/167932
- DOI: https://doi.org/10.1134/S0031918X18110029
- ID: 167932
Cite item
Abstract
This paper presents the results of the investigation of the structure and magnetoresistive properties of [Co90Fe10/Cu]n superlattices deposited on (Ni80Fe20)60Cr40 and Ta/(Ni80Fe20)60Cr40 buffer layers by magnetron sputtering. Our study has found that a Ta sublayer added to the (Ni80Fe20)60Cr40 buffer layer increases the degree of perfection of the 〈111〉 texture. This leads to a substantial decrease in the magnetoresistance hysteresis. The optimization of the composition of multilayered structure allowed us to obtain the superlattice with the relative magnetoresistance magnitude, which at room temperature reaches 81% and, at liquid helium temperature, exceeds 160%. The studied superlattices exhibited high temperature stability.
About the authors
N. S. Bannikova
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Author for correspondence.
Email: bannikova@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
M. A. Milyaev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin, Institute of Natural Sciences and Mathematics
Email: bannikova@imp.uran.ru
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002
L. I. Naumova
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin, Institute of Natural Sciences and Mathematics
Email: bannikova@imp.uran.ru
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002
E. I. Patrakov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: bannikova@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
V. V. Proglyado
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: bannikova@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
I. Yu. Kamenskii
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: bannikova@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
M. V. Ryabukhina
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: bannikova@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
V. V. Ustinov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin, Institute of Natural Sciences and Mathematics
Email: bannikova@imp.uran.ru
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002