A simple picture for the lattice parameter behaviour in heusler C1b compounds

Abstract

The previously described picture, for the lattice parameter behaviour of threc site intermetallics in the L2, phase, is now applied to the C1 b compounds. It is argued that the observed data, for several scquences of C l b compounds, can again be qualitatively understood in terms of thc relcvant d (or p) site occupation numbers.Lc modele deja present6 pour le cas d'intermetalliques a trois sites L2,, est applique ici aux composes Clb. Des arguments sont presente pour montrer que le comportement du parametre de reseau, pour plusieurs sequences de composes C1 b, peut encore Ctre qualitativement compris en termes de I'occupation d (ou p) des sites corrcspondants. I ) P.O. Box 15051, 91540-000 Porto Alegre (RS), Brasil. 2, R. Xavier Sigaud 150, 22290-180 Rio de Janeiro, Brasil.

Origin and properties of the gap in the half-ferromagnetic Heusler alloys

“…Of course we should keep in mind that all these calculations have been performed at the NiMnSb experimental lattice constant and the position of the Fermi level would change at the real lattice parameters. 49 But to our knowledge none of this compounds has been yet studied experimentally with the exception of NiMnAs which was found to crystallize in the hexagonal Fe 2 P structure, 50 but modern techniques like molecular beam epitaxy may enable its growth in the C1 b structure.…”

Kübik AlLiSi yapıdaki XMnSb (X=Au ve Ir) bileşiklerinin yapısal, mekanik ve dinamik özellikleri

“…IrMnSb alaşımının yapısal, elektronik ve manyetik özellikleri çeşitli araştırma grupları tarafından çalışılmıştır [2,5,[9][10][11][12][13][14][15][16][17] . Çeşitli teorik metotlarla bazı araştırma grupları [10,12,13,15,17]…”