Spin-polarized electron current from carbon-doped open armchair boron nitride nanotubes: Implication for nano-spintronic devices

Local density of states of the mouth's atoms in (a) C-Sub-B, and (b) C-Sub-N open (5, 5) BNNTs. Dotted line indicates the Fermi level. Here, the energy zero is shifted for the convenience of comparison. Solid and dashed lines correspond to the spin-up and spin-down states, respectively.