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This article is cited in 39 scientific papers (total in 39 papers)
Magnetism
Specific features of the properties of half-metallic ferromagnetic Heusler alloys Fe$_2$MnAl, Fe$_2$MnSi, and Co$_2$MnAl
N. I. Kourova, V. V. Marchenkovab, A. V. Koroleva, L. A. Stashkovaa, S. M. Emelyanovaa, H. W. Weberc a Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
b International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw, Poland
c Atominstitut, Vienna University of Technology, Vienna, Austria
Abstract:
The structural, magnetic, and electrical properties of half-metallic Heusler alloys Fe$_2$MnAl, Fe$_2$MnSi, and Co$_2$MnAl have been investigated in the temperature range of 4–900 K. According to the X-ray diffraction analysis, these alloys have the $B2$ and $L2_1$ structures with different degrees of atomic order. The magnetic state of the alloys is considered as a two-sublattice ferrimagnet. The electrical resistivity and thermoelectric power have been discussed in the framework of the two-current conduction model taking into account the existence of an energy gap in the electronic spectrum of the alloys near the Fermi level for the subband with spin-down (minority) electrons.
Received: 07.10.2014
Citation:
N. I. Kourov, V. V. Marchenkov, A. V. Korolev, L. A. Stashkova, S. M. Emelyanova, H. W. Weber, “Specific features of the properties of half-metallic ferromagnetic Heusler alloys Fe$_2$MnAl, Fe$_2$MnSi, and Co$_2$MnAl”, Fizika Tverdogo Tela, 57:4 (2015), 684–691; Phys. Solid State, 57:4 (2015), 700–708
Linking options:
https://www.mathnet.ru/eng/ftt11409 https://www.mathnet.ru/eng/ftt/v57/i4/p684
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