“Seamless” Graphene Interconnects for the Prospect of All-Carbon Spin-Polarized Field-Effect Transistors
Year: 2011
Type: article
Abstract: Magnetism in graphene nanofragments arises from the spin polarization of the edge-states; consequently, as the material inexorably shrinks, magnetism will become a dominant feature whereas the bulk carrier mobility will be less relevant. We have carried out an ab initio study of the role of graphene-ultra-nanofragment magnetism on electronic transport. We present, as a proof-of-concept, a nanoscopic spin-polarized field-effect transistor (FET) with the channel and metallic contacts carved from a single graphene sheet. We demonstrate the selective tuning of conductance through electric-field control of the magnetic, rather than the charge, degrees of freedom of the channel, the latter typically employed in microscopic graphene FETs.
DOI: 10.1021/jp1096234
Authors: Luis A. Agapito, Nicholas Kioussis
Institution: California State University, Northridge
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2051509762