title: Electric-field control of magnetism in graphene quantum dots: Ab initio calculations.
abstract: Employing ab initio calculations we predict that the magnetic states of hydrogenated diamond-shaped zigzag graphene quantum dots (GQDs), each exhibiting unique electronic structure, can be selectively tuned with gate voltage, through Stark or hybridization electric-field modulation of the spatial distribution and energy of the spin-polarized molecular orbitals, leading to transitions between these states. Electrical read-out of the GQD magnetic state can be accomplished by exploiting the distinctive electrical properties of the various magnetic configurations.
authors.affiliation: Department of Physics, California State University, Northridge, California 91330-8268, USA.
authors.forename: Luis A
authors.initials: LA
authors.lastname: Agapito
authors.forename: Nicholas
authors.initials: N
authors.lastname: Kioussis
authors.forename: Efthimios
authors.initials: E
authors.lastname: Kaxiras