title: Ballistic Transport Exceeding 28 μm in CVD Grown Graphene.
abstract: We report on ballistic transport over more than 28 μm in graphene grown by chemical vapor deposition (CVD) that is fully encapsulated in hexagonal boron nitride. The structures are fabricated by an advanced dry van-der-Waals transfer method and exhibit carrier mobilities of up to three million cm(2)/(Vs). The ballistic nature of charge transport is probed by measuring the bend resistance in cross- and square-shaped devices. Temperature-dependent measurements furthermore prove that ballistic transport is maintained exceeding 1 μm up to 200 K.
authors.affiliation: JARA-FIT and 2nd Institute of Physics, RWTH Aachen University , 52074 Aachen, Germany.
authors.forename: Luca
authors.initials: L
authors.lastname: Banszerus
authors.affiliation: JARA-FIT and 2nd Institute of Physics, RWTH Aachen University , 52074 Aachen, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Schmitz
authors.affiliation: JARA-FIT and 2nd Institute of Physics, RWTH Aachen University , 52074 Aachen, Germany.|Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, 52425 Jülich, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Engels
authors.affiliation: JARA-FIT and 2nd Institute of Physics, RWTH Aachen University , 52074 Aachen, Germany.|Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, 52425 Jülich, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Goldsche
authors.affiliation: National Institute for Materials Science , 1-1 Namiki, Tsukuba, 305-0044, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Watanabe
authors.affiliation: National Institute for Materials Science , 1-1 Namiki, Tsukuba, 305-0044, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Taniguchi
authors.affiliation: JARA-FIT and 2nd Institute of Physics, RWTH Aachen University , 52074 Aachen, Germany.
authors.forename: Bernd
authors.initials: B
authors.lastname: Beschoten
authors.affiliation: JARA-FIT and 2nd Institute of Physics, RWTH Aachen University , 52074 Aachen, Germany.|Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, 52425 Jülich, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Stampfer
keywords: CVD; Graphene; ballistic transport; cyclotron radius; mean free path