Structural and electronic properties of Ni2MnGa

Barman, S. R. ; Banik, S. ; Chakrabarti, Aparna (2005) Structural and electronic properties of Ni2MnGa Physical Review B: Condensed Matter and Materials Physics, 72 (18). 184410_1-184410_7. ISSN 1098-0121

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Official URL: http://prb.aps.org/abstract/PRB/v72/i18/e184410

Related URL: http://dx.doi.org/10.1103/PhysRevB.72.184410

Abstract

The equilibrium structure and electronic properties of a ferromagnetic shape memory alloy Ni2MnGa have been studied for both the martensitic and austenitic phases by the full potential linearized augmented plane wave method. We report the stable martensitic phase at c/a=0.97 and the lattice constants are in good agreement with the experimentally reported values. The Ni 3d eg related minority-spin peak in the density of states (DOS) near the Fermi level (EF) in the austenitic phase splits into Ni 3dz2 and 3dx2-y2 states in the martensitic phase. The minority spin DOS at EF varies with c/a, while the majority spin DOS at EF remains almost unchanged.

Item Type:Article
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ID Code:64566
Deposited On:12 Oct 2011 05:20
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