Giant Magnetoresistance of Metallic Exchange-Coupled Multilayers and Spin Valves
- Authors: Ustinov V.V.1, Milyaev M.A.1, Naumova L.I.1
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Affiliations:
- Institute of Metal Physics, Ural Branch
- Issue: Vol 118, No 13 (2017)
- Pages: 1300-1359
- Section: Electrical and Magnetic Properties
- URL: https://journals.rcsi.science/0031-918X/article/view/167981
- DOI: https://doi.org/10.1134/S0031918X17130038
- ID: 167981
Cite item
Abstract
The microstructure and the magnetic and magnetotransport properties have been investigated depending on the types of the magnetic and nonmagnetic materials, composition, nanostructure, and regimes of thermomagnetic treatments for two types of metallic nanostructures, namely, magnetic multilayers and spin valves, which exhibit the effect of a giant magnetoresistance (GMR). Magnetosensitive materials that are promising for the applications in microelectronics have been synthesized: CoFe/Cu multilayers with record values of the GMR effect (81%); NiFeCo/Cu multilayers with a sensitivity of 0.5%/Oe; and microobjects prepared on the basis of spin valves, which possess the anhysteretic field dependence of the magnetoresistance and a GMR effect equal to 9%. Special attention is given to the methods of decreasing hysteresis. A comparison of the obtained results with the results for similar types of materials published earlier has been carried out.
About the authors
V. V. Ustinov
Institute of Metal Physics, Ural Branch
Email: milyaev@imp.uran.ru
Russian Federation, Ekaterinburg, 620990
M. A. Milyaev
Institute of Metal Physics, Ural Branch
Author for correspondence.
Email: milyaev@imp.uran.ru
Russian Federation, Ekaterinburg, 620990
L. I. Naumova
Institute of Metal Physics, Ural Branch
Email: milyaev@imp.uran.ru
Russian Federation, Ekaterinburg, 620990