Abstract
We report the electronic band structure, magnetism, and transport properties of the Heusler compound Fe2CrAl. The band-structure calculation for Fe2CrAl at the experimental lattice constant does not show the half-metallicity. The magnetism measurements show that the saturated moment at 5K and the Curie temperature are 1.75μB per formula unit and 234K, respectively. The temperature dependence of the magnetization follows the spin-wave behavior at low temperature. The electrical resistivity shows a semiconducting-like behavior, which can be explained by the electronic band-structure calculations. The dependence of the magnetoresistance on the applied field is related to the competition between the effect of the Lorentz force and the extinction of inelastic s–d–s scattering.
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