Magnetoresistive properties of nanostructured magnetic metals, manganites, and magnetic semiconductors
- Authors: Solin N.I.1, Romashev L.N.1, Naumov S.V.1, Saranin A.A.2, Zotov A.V.2, Olyanich D.A.2, Kotlyar V.G.2, Utas O.A.2
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch
- Institute of Automation and Control Processes, Far East Branch
- Issue: Vol 61, No 2 (2016)
- Pages: 233-239
- Section: Solid State Electronics
- URL: https://journals.rcsi.science/1063-7842/article/view/196849
- DOI: https://doi.org/10.1134/S1063784216020237
- ID: 196849
Cite item
Abstract
We consider methods for controlling magnetoresistive parameters of magnetic metal superlattices, manganites, and magnetic semiconductors. By reducing the thickness of ferromagnetic layers in superlattices (e.g., Fe layers in Fe/Cr superlattices), it is possible to form superparamagnetic clustered–layered nanostructures with a magnetoresistance weakly depending on the direction of the external magnetic field, which is very important for applications of such type of materials. Producing Mn vacancies and additionally annealing lanthanum manganites in the oxygen atmosphere, it is possible to increase their magnetoresistance by more than four orders of magnitude. By changing the thickness of p–n junction in the structure of ferromagnetic semiconductors, their magnetoresistance can be increased by 2–3 orders of magnitude.
About the authors
N. I. Solin
Mikheev Institute of Metal Physics, Ural Branch
Author for correspondence.
Email: solin@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Yekaterinburg, 620990
L. N. Romashev
Mikheev Institute of Metal Physics, Ural Branch
Email: solin@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Yekaterinburg, 620990
S. V. Naumov
Mikheev Institute of Metal Physics, Ural Branch
Email: solin@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Yekaterinburg, 620990
A. A. Saranin
Institute of Automation and Control Processes, Far East Branch
Email: solin@imp.uran.ru
Russian Federation, ul. Radio 5, Vladivostok, 690041
A. V. Zotov
Institute of Automation and Control Processes, Far East Branch
Email: solin@imp.uran.ru
Russian Federation, ul. Radio 5, Vladivostok, 690041
D. A. Olyanich
Institute of Automation and Control Processes, Far East Branch
Email: solin@imp.uran.ru
Russian Federation, ul. Radio 5, Vladivostok, 690041
V. G. Kotlyar
Institute of Automation and Control Processes, Far East Branch
Email: solin@imp.uran.ru
Russian Federation, ul. Radio 5, Vladivostok, 690041
O. A. Utas
Institute of Automation and Control Processes, Far East Branch
Email: solin@imp.uran.ru
Russian Federation, ul. Radio 5, Vladivostok, 690041