%0 Journal Article %T Structural and Electronic Properties of Pure Ta, TaNO, and TaZrNO with Ab Initio Calculations %A T. Chihi %A M. Fatmi %A M. Guemmaz %A J. C. Parlebas %J ISRN Metallurgy %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/456762 %U http://dx.doi.org/10.5402/2012/456762