Peculiarities of Electronic Transport and Magnetic State in Half-Metallic Ferromagnetic and Spin Gapless Semiconducting Heusler Alloys
- Authors: Marchenkov V.V.1,2, Irkhin V.Y.1,2, Perevozchikova Y.A.1
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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
- Issue: Vol 120, No 13 (2019)
- Pages: 1325-1332
- Section: Article
- URL: https://journals.rcsi.science/0031-918X/article/view/168970
- DOI: https://doi.org/10.1134/S0031918X19130155
- ID: 168970
Cite item
Abstract
A brief survey of experimental and theoretical studies of half-metallic ferromagnets (HMFs) and spin gapless semiconductors is given, the possible candidates being the X2YZ (X = Mn, Fe, Co; Y = Ti, V, Cr, Mn, Fe, Co, Ni; Z = Al, Si, Ga, Ge, In, Sn, Sb) Heusler alloys. The data on the electrical resistivity, normal and anomalous Hall Effect, and magnetic properties are presented. It is shown that the Co2FeZ alloys demonstrate properties of conventional ferromagnets, the HMF properties being also manifested upon variation of the Z-component. The Fe2YAl and Mn2YAl alloys show upon variation of the Y-component both metallic and semiconducting electronic characteristics, the magnetic properties changing from the ferromagnetic to compensated ferrimagnetic state. The HMF and spin gapless semiconductor states are supposed to exist in these Heusler alloys systems.
About the authors
V. V. Marchenkov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin
Author for correspondence.
Email: march@imp.uran.ru
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002
V. Yu. Irkhin
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin
Email: march@imp.uran.ru
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002
Yu. A. Perevozchikova
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: march@imp.uran.ru
Russian Federation, Ekaterinburg, 620108