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Author:
K.H. He   G. Zheng   B. Kirtman   Q.L. Chen   X.C. Wang   V. Timón   G.F. Ji  


Journal:
Solid State Communications


Issue Date:
2010


Abstract(summary):

The electronic structure and effect of vanadium doping of BN nanowires are studied by first principles calculations. For the pure nanowires, it can be found that B atoms move inwards whereas N atoms move outwards, and BN nanowires have a constant band gap about 4.08 eV with larger diameter. The above-mentioned features are in agreement with those of BN nanotubes. We also find that the pure nanowires become more and more stable with increasing diameter. For V-doped BN nanowires, the V atoms move outwards, and the total energies of pair V-doped BN nanowires indicate that the ferromagnetic ground state, and the electronic structures show half-metallicity. The majority of total spin magnetic moments originate from V atoms, and B atoms which near dopant have a little contribution, while N atoms provide a little reverse magnetic moment. This study may be useful in spintronics and nanomagnets. [All rights reserved Elsevier].


Page:
701-706


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