title: Photon-induced vanishing of magnetoconductance in 2D electrons on liquid helium.
abstract: We report on a novel transport phenomenon realized by optical pumping in surface state electrons on helium subjected to perpendicular magnetic fields. The electron dynamics is governed by the photon-induced excitation and scattering-mediated transitions between electric subbands. In a range of magnetic fields, we observe vanishing longitudinal conductivity σ(xx)→0. Our result suggests the existence of radiation-induced zero-resistance states in the nondegenerate 2D electron system.
authors.affiliation: Low Temperature Physics Laboratory, RIKEN, Hirosawa 2-1, Wako 351-0198, Japan. konstantinov@riken.jp
authors.forename: Denis
authors.initials: D
authors.lastname: Konstantinov
authors.forename: Kimitoshi
authors.initials: K
authors.lastname: Kono