MgN: a new promising material for spintronic applications
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2009Access:
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Andrea Droghetti, Nadjib Baadji, and Stefano Sanvito, MgN: a new promising material for spintronic applications, Physical Review B, 80, 2009, 235310Download Item:
PhysRevB.80.235310.pdf (Published (publisher's copy)) 457.6Kb
Abstract:
We present rocksalt MgN as a
d
0
magnet with potential for spintronics applications. Our density-functional
theory calculations demonstrate that rocksalt MgN is at the verge of half-metallicity, with an electronic struc-
ture robust against the choice of exchange and correlation functional. Furthermore the calculated heat of
formation describes the compound as metastable and suggests that it can be fabricated by tuning the relative
Mg and N abundance during growth. Intriguingly the equilibrium lattice constant is close to that of MgO so
that MgN is likely to form as an inclusion during the fabrication of N-doped MgO. If MgN can be made, the
MgO/MgN system may become a materials platform for magnetic tunnel junctions not incorporating any
transition metals
Sponsor
Grant Number
Science Foundation Ireland (SFI)
07/RFP/MASF238
Author's Homepage:
http://people.tcd.ie/sanvitoshttp://people.tcd.ie/droghea
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Author: Sanvito, Stefano; Droghetti, Andrea
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Physical Review B80
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