title: Thermoelectric detection of chiral heat transport in graphene in the quantum Hall regime.
abstract: We report measurements of heat transport along the edge conducting channels in monolayer graphene in the integer quantum Hall regime. Hot charge carriers are injected to the edge channels, and the thermoelectric voltage is measured at a distance along the edge from the heat injection point. We confirm that heat transport in graphene in the quantum Hall regime is chiral and the thermoelectric signal is correlated with the charge conductance of ballistic transport, following the Mott relation. The thermoelectric signal decays with distance from the heater, indicating that carriers are partially thermalized during edge transmission.
authors.affiliation: Department of Physics, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea.
authors.forename: Seung-Geol
authors.initials: SG
authors.lastname: Nam
authors.forename: E H
authors.initials: EH
authors.lastname: Hwang
authors.forename: Hu-Jong
authors.initials: HJ
authors.lastname: Lee