1205.3772 (Hamed Karimi et al.)

Towards a Rigorous Proof of Magnetism on the Edges of Graphene
Nano-ribbons    [PDF]

Hamed Karimi, Ian Affleck

A zigzag edge of a graphene nanoribbon supports localized zero modes, ignoring interactions. Based mainly on mean field arguments and numerical approaches, it has been suggested that interactions can produce a large magnetic moment on the edges. By considering the Hubbard model in the weak coupling limit, U<View original: http://arxiv.org/abs/1205.3772