Open AccessElectrical, magnetic and galvanomagnetic properties of Mn-based Heusler alloys
Author(s) -
А. А. Семянникова,
V. Yu. Irkhin,
П. Б. Терентьев,
Yu. A. Perevozchikova,
P. S. Korenistov,
A. F. Prekul,
Е. Б. Марченкова,
M. Eisterer,
В. В. Марченков
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1389/1/012150
Subject(s) - condensed matter physics , gapless playback , spintronics , ferromagnetism , materials science , semiconductor , spin polarization , magnetic semiconductor , band gap , half metal , spin (aerodynamics) , physics , optoelectronics , electron , quantum mechanics , thermodynamics
Half-metallic ferromagnets and spin gapless semiconductors are promising materials for spintronic devices since a high degree of the spin polarization of charge carriers can be realized in such materials. Spin gapless semiconductors make it possible to combine the properties of half-metallic ferromagnets with semiconductor characteristics and to perform fine tuning of the energy gap value. The Mn 2 Me Al ( Me = Ti, V, Cr, Mn, Fe, Co, Ni) Heusler alloys can possess such features. We studied the electrical, magnetic and galvanomagnetic properties of the Mn 2 Me Al ( Me = Ti, V, Cr, Mn, Fe, Co, Ni) Heusler alloys from 4.2 K to 900 K and in magnetic fields up to 100 kOe. The features in the electronic and magnetic properties of Mn 2 MeAl Heusler alloys were observed, which can be a manifestation of the electronic energy spectrum peculiarities with occurrence of the half-metallic ferromagnet and/or spin gapless semiconductor states.