title: Observation of resistively detected hole spin resonance and zero-field pseudo-spin splitting in epitaxial graphene.
abstract: Electronic carriers in graphene show a high carrier mobility at room temperature. Thus, this system is widely viewed as a potential future charge-based high-speed electronic material to complement-or replace-silicon. At the same time, the spin properties of graphene have suggested improved capability for spin-based electronics or spintronics and spin-based quantum computing. As a result, the detection, characterization and transport of spin have become topics of interest in graphene. Here we report a microwave photo-excited transport study of monolayer and trilayer graphene that reveals an unexpectedly strong microwave-induced electrical response and dual microwave-induced resonances in the dc resistance. The results suggest the resistive detection of spin resonance, and provide a measurement of the g-factor, the spin relaxation time and the sub-lattice degeneracy splitting at zero magnetic field.
authors.affiliation: Department of Physics and Astronomy, Georgia State University, 29 Peachtree Center Avenue, # 400, Atlanta, Georgia 30303, USA. mani.rg@gmail.com
authors.forename: Ramesh G
authors.initials: RG
authors.lastname: Mani
authors.forename: John
authors.initials: J
authors.lastname: Hankinson
authors.forename: Claire
authors.initials: C
authors.lastname: Berger
authors.forename: Walter A
authors.initials: WA
authors.lastname: de Heer