Specific features of the electrical resistivity of half-metallic ferromagnets Co2MeAl (Me = Ti, V, Cr, Mn, Fe)


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The transport properties of half-metallic ferromagnetic Heusler alloys Co2MeAl (Me = Ti, V, Cr, Mn, Fe are transition 3d metals) have been measured in the temperature range of 4–900 K. The specific features of the behavior of the resistivity have been considered in the framework of the two-current model of conductivity that takes into account the existence of the energy gap in the electronic spectra of the alloys near the Fermi level of one of electron subbands that differs in the spin direction.

Sobre autores

N. Kourov

Institute of Metal Physics, Ural Branch

Autor responsável pela correspondência
Email: kourov@imp.uran.ru
Rússia, ul. S. Kovalevskoi 18, Yekaterinburg, 620219

Yu. Perevozchikova

Institute of Metal Physics, Ural Branch

Email: kourov@imp.uran.ru
Rússia, ul. S. Kovalevskoi 18, Yekaterinburg, 620219

H. Weber

Atominstitut

Email: kourov@imp.uran.ru
Áustria , Stadionallee 2, Vienna, 1020

V. Marchenkov

Institute of Metal Physics, Ural Branch; Ural Federal University; International Laboratory of High Magnetic Fields and Low Temperatures

Email: kourov@imp.uran.ru
Rússia, ul. S. Kovalevskoi 18, Yekaterinburg, 620219; ul. Mira 19, Yekaterinburg, 620002; ul. Gajowicka 95, Wroclaw, 53-421

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