Room-temperature ferromagnetism with high magnetic moment in Cu-doped AlN single crystal whiskers*
Jiang Liang-Bao, Liu Yu, Zuo Si-Bin, Wang Wen-Jun†
       
(a) and (b) Total and partial (2p orbitals of four N atoms around a Cu atom and 3d orbitals of the Cu atom) spin-resolved DOSs in the Cu-doped AlN supercells without or with a V N. (c) and (d) Total spin density isosurface (isovalue is 0.11 e/Å3) around the Cu-dopant site without or with a V N. Cu atoms are located inside the isosurface and an arrow indicates the location of the V N.