Work

Electric-field control of magnetism in graphene quantum dots:Ab initiocalculations

Year: 2010

Type: article

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.

Source: Physical Review B

DOI: 10.1103/physrevb.82.201411

Authors: Luis A. Agapito, Nicholas Kioussis, Efthimios Kaxiras

Institutions: California State University, Northridge, Harvard University

Language: English

Topic: Graphene research and applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: National Institute of General Medical Sciences

Award: Multiscale simulations of transport in DNA and DNA-carbon nanotube systems