▁July ▁ 1 5 , ▁ 2 0 0 7 ▁ ▁G ow th am ▁S , ▁Sche icher ▁R H , ▁A hu ja ▁R , ▁et ▁al . ▁Ph ysis or ption ▁of ▁nucle ob ases ▁on ▁graph ene : ▁D ens ity - function al ▁calculations ▁Phys ical ▁Review ▁B ▁ 7 6 ▁( 3 ): ▁Art . ▁No . ▁ 0 3 3 4 0 1 ▁July ▁ 2 0 0 7 ▁ ▁He ▁H Y , ▁P ande y ▁R , ▁Kar na ▁SP ▁Electron ic ▁structure ▁mechanism ▁of ▁spin - pol ar ized ▁electron ▁transport ▁in ▁a ▁Ni - C - 6 0 - N i ▁system ▁Chem ical ▁Physics ▁Let ters ▁ 4 3 9 ▁( 1 – 3 ): ▁ 1 1 0 – 1 1 4 ▁May ▁ 4 , ▁ 2 0 0 7 ▁ ▁Dun lap ▁B I , ▁Kar na ▁SP , ▁Z ope ▁R R ▁D ip ole ▁moments ▁from ▁atomic - number - dependent ▁potential s ▁in ▁analyt ic ▁density - function al ▁theory ▁Journal ▁of ▁Chem ical ▁Physics ▁ 1 2 5 ▁( 2 1 ): ▁Art . ▁No . ▁ 2 1 4 1 0 4 ▁December ▁ 7 , ▁ 2 0 0 6 ▁ ▁P ined a ▁AC , ▁Kar na ▁SP ▁( Hy per ) pol ar iz abilities ▁of ▁isolated ▁Ga N ▁nan oc l ust ers ▁Chem ical ▁Physics ▁Let ters ▁ 4 2 9 ▁( 1 – 3 ): ▁ 1