Metal insulator transition in Fe2VAl1−xSix
2001; Elsevier BV; Volume: 326; Issue: 1-2 Linguagem: Inglês
10.1016/s0925-8388(01)01245-2
ISSN1873-4669
AutoresS. Jemima, Awadhesh Mani, A. Bharathi, Nithya Ravindran, Y. Hariharan,
Tópico(s)Heusler alloys: electronic and magnetic properties
ResumoResistivity and ac susceptibility measurements have been carried out in the 4.2 to 300 K temperature range for several samples in the series Fe2VAl1−xSix for 0<x 0.05. The ac susceptibility measurements show that Fe2VAl is non-magnetic, while they indicate the formation of a ferrimagnetic phase for x=0.04, with Tc<4 K. The results are discussed in the light of currently known models of the electronic structure of these systems.
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