Spin polarized conductance in hybrid graphene nanoribbons using 5-7 defects.
We present a class of intramolecular graphene heterojunctions and use first-principles density functional calculations to describe their electronic, magnetic, and transport properties. The hybrid graphene and hybrid graphene nanoribbons have both armchair and zigzag features that are separated by an interface made up of pentagonal and heptagonal carbon rings. Contrary to conventional graphene sheets, the computed electronic density of states indicates that all hybrid graphene and nanoribbon systems are metallic. Hybrid nanoribbons are found to exhibit a remarkable width-dependent magnetic behavior and behave as spin polarized conductors.
Botello-Méndez
Andrés R
AR
Laboratory for Nanoscience and Nanotechnology Research & Advanced Materials Department, IPICYT, Camino a la Presa San José 2055, San Luis Potosi, Mexico.
Cruz-Silva
Eduardo
E
López-Urías
Florentino
F
Sumpter
Bobby G
BG
Meunier
Vincent
V
Terrones
Mauricio
M
Terrones
Humberto
H