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Electronic structure of Fe2VGa

Goraus J., Ślebarski A.

Materials Science Poland

2007

Vol. 25, No. 2

359--362

We present the band structure calculations on the Heusler alloy Fe2VGa which shows a pseudogap at the Fermi level. The compound is found to be nonmagnetic. We observed, however, that an atomic disorder which has been experimentally observed can lead to the behaviour characteristic of the heavy-Fermion compounds. The antisite Fe defects locate the d states forming a narrow d-band at the Fermi level.