title: Nonlinear behavior of three-terminal graphene junctions at room temperature.
abstract: We demonstrate nonlinear behavior in three-terminal T-branch graphene devices at room temperature. A rectified nonlinear output at the center branch is observed when the device is biased by a push-pull configuration. Nonlinearity is assumed to arise from a difference in charge transfer through the metal–graphene contact barrier between two contacts. The sign of the rectification can be altered by changing the carrier type using the back-gate voltage.
authors.affiliation: Department of Micro- and Nanosciences, Aalto University, Tietotie 3, FI-02150 Espoo, Finland. wonjae.kim@aalto.fi
authors.forename: Wonjae
authors.initials: W
authors.lastname: Kim
authors.forename: Pirjo
authors.initials: P
authors.lastname: Pasanen
authors.forename: Juha
authors.initials: J
authors.lastname: Riikonen
authors.forename: Harri
authors.initials: H
authors.lastname: Lipsanen