title: Dynamic Hall effect driven by circularly polarized light in a graphene layer.
abstract: We report the observation of the circular ac Hall effect where the current is solely driven by the crossed ac electric and magnetic fields of circularly polarized radiation. Illuminating an unbiased monolayer sheet of graphene with circularly polarized terahertz radiation at room temperature generates--under oblique incidence--an electric current perpendicular to the plane of incidence, whose sign is reversed by switching the radiation helicity. Alike the classical dc Hall effect, the voltage is caused by crossed E and B fields which are, however rotating with the light's frequency.
authors.affiliation: Terahertz Center, University of Regensburg, 93040 Regensburg, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Karch
authors.forename: P
authors.initials: P
authors.lastname: Olbrich
authors.forename: M
authors.initials: M
authors.lastname: Schmalzbauer
authors.forename: C
authors.initials: C
authors.lastname: Zoth
authors.forename: C
authors.initials: C
authors.lastname: Brinsteiner
authors.forename: M
authors.initials: M
authors.lastname: Fehrenbacher
authors.forename: U
authors.initials: U
authors.lastname: Wurstbauer
authors.forename: M M
authors.initials: MM
authors.lastname: Glazov
authors.forename: S A
authors.initials: SA
authors.lastname: Tarasenko
authors.forename: E L
authors.initials: EL
authors.lastname: Ivchenko
authors.forename: D
authors.initials: D
authors.lastname: Weiss
authors.forename: J
authors.initials: J
authors.lastname: Eroms
authors.forename: R
authors.initials: R
authors.lastname: Yakimova
authors.forename: S
authors.initials: S
authors.lastname: Lara-Avila
authors.forename: S
authors.initials: S
authors.lastname: Kubatkin
authors.forename: S D
authors.initials: SD
authors.lastname: Ganichev