title: Oscillating Magnetoresistance in Graphene p-n Junctions at Intermediate Magnetic Fields.
abstract: We report on the observation of magnetoresistance oscillations in graphene p-n junctions. The oscillations have been observed for six samples, consisting of single-layer and bilayer graphene, and persist up to temperatures of 30 K, where standard Shubnikov-de Haas oscillations are no longer discernible. The oscillatory magnetoresistance can be reproduced by tight-binding simulations. We attribute this phenomenon to the modulated densities of states in the n- and p-regions.
authors.affiliation: Solid State Physics Laboratory, ETH Zürich , CH-8093 Zürich, Switzerland.
authors.forename: Hiske
authors.identifier: 0000-0002-9107-4763
authors.initials: H
authors.lastname: Overweg
authors.affiliation: Solid State Physics Laboratory, ETH Zürich , CH-8093 Zürich, Switzerland.
authors.forename: Hannah
authors.initials: H
authors.lastname: Eggimann
authors.affiliation: Institut für Theoretische Physik, Universität Regensburg , D-93040 Regensburg, Germany.|Department of Physics, National Cheng Kung University , Tainan 70101, Taiwan.
authors.forename: Ming-Hao
authors.initials: MH
authors.lastname: Liu
authors.affiliation: Solid State Physics Laboratory, ETH Zürich , CH-8093 Zürich, Switzerland.
authors.forename: Anastasia
authors.initials: A
authors.lastname: Varlet
authors.affiliation: Solid State Physics Laboratory, ETH Zürich , CH-8093 Zürich, Switzerland.
authors.forename: Marius
authors.initials: M
authors.lastname: Eich
authors.affiliation: Solid State Physics Laboratory, ETH Zürich , CH-8093 Zürich, Switzerland.
authors.forename: Pauline
authors.initials: P
authors.lastname: Simonet
authors.affiliation: Solid State Physics Laboratory, ETH Zürich , CH-8093 Zürich, Switzerland.
authors.forename: Yongjin
authors.initials: Y
authors.lastname: Lee
authors.affiliation: Advanced Materials Laboratory, National Institute for Material Science , 1-1 Namiki, Tsukuba 305-0044, Japan.
authors.forename: Kenji
authors.identifier: 0000-0003-3701-8119
authors.initials: K
authors.lastname: Watanabe
authors.affiliation: Advanced Materials Laboratory, National Institute for Material Science , 1-1 Namiki, Tsukuba 305-0044, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Taniguchi
authors.affiliation: Institut für Theoretische Physik, Universität Regensburg , D-93040 Regensburg, Germany.
authors.forename: Klaus
authors.initials: K
authors.lastname: Richter
authors.affiliation: National Graphene Institute, University of Manchester , Manchester M13 9PL, United Kingdom.
authors.forename: Vladimir I
authors.initials: VI
authors.lastname: Fal'ko
authors.affiliation: Solid State Physics Laboratory, ETH Zürich , CH-8093 Zürich, Switzerland.
authors.forename: Klaus
authors.initials: K
authors.lastname: Ensslin
authors.affiliation: Solid State Physics Laboratory, ETH Zürich , CH-8093 Zürich, Switzerland.
authors.forename: Thomas
authors.initials: T
authors.lastname: Ihn
keywords: Graphene; ballistic transport; magnetoresistance; p−n junction