Journal
FRONTIERS OF PHYSICS
Volume 12, Issue 4, Pages -Publisher
HIGHER EDUCATION PRESS
DOI: 10.1007/s11467-017-0650-5
Keywords
root 3 x root 3 graphene superlattice; inter-valley scattering
Categories
Funding
- National Natural Science Foundation of China [11504240, 11504241, 11604213]
- Natural Science Foundation of Shenzhen University [201550]
- University Grant Council of the Government of HKSAR [AoE/P-04/08]
Ask authors/readers for more resources
Prompted by recent reports on root 3 x root 3 graphene superlattices with intrinsic inter-valley interactions, we perform first-principles calculations to investigate the electronic properties of periodically nitrogen-doped graphene and carbon nanotube nanostructures. In these structures, nitrogen atoms substitute one-sixth of the carbon atoms in the pristine hexagonal lattices with exact periodicity to form perfect root 3 x root 3 superlattices of graphene and carbon nanotubes. Multiple nanostructures of root 3 x root 3 graphene ribbons and carbon nanotubes are explored, and all configurations show nonmagnetic and metallic behaviors. The transport properties of root 3 x root 3 graphene and carbon nanotube superlattices are calculated utilizing the non-equilibrium Green's function formalism combined with density functional theory. The transmission spectrum through the pristine and root 3 x root 3 armchair carbon nanotube heterostructure shows quantized behavior under certain circumstances.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available