Open AccessStrong changes in electronic transport and magnetic properties of Co2YSi Heusler alloys at Y-component variation
Author(s) -
Yu. A. Perevozchikova,
А. А. Семянникова,
П. Б. Терентьев,
M. Eisterer,
P. S. Korenistov,
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 - 10.1088/1742-6596/1389/1/012110
Subject(s) - spintronics , materials science , condensed matter physics , ferromagnetism , heusler compound , fermi level , spin polarization , charge carrier , electron mobility , metal , metallurgy , electron , optoelectronics , physics , quantum mechanics
The Co 2 Y Si (Y = Ti, V, Cr, Mn, Fe, Co, Ni) Heusler alloys can manifest the properties of half-metallic ferromagnets. These compounds are promising materials for spintronics since almost 100 % spin polarization of charge carriers can be realized at room temperature. We measured the electroresistivity, magnetic and galvanomagnetic properties of the Co 2 Y Si ( Y = Ti, V, Cr, Mn, Fe, Co, Ni) Heusler alloys from 4.2 K to 300 K and in magnetic fields up to 100 kOe. The type, concentration and mobility of charge carriers were estimated. The Y -component variation in the Co 2 Y Si Heusler alloys is found to affect strongly the number of current carriers and alter the electronic band structure near the Fermi level E F and, consequently, the electronic transport and magnetic properties of the Co 2 Y Si (Y = Ti, V, Cr, Mn, Fe, Co, Ni) Heusler alloys.