title: Acoustic charge transport in GaN nanowires.
abstract: We present acoustic charge transport in GaN nanowires (GaN NWs). The GaN NWs were grown by molecular beam epitaxy (MBE) on silicon(111) substrates. The nanowires were removed from the silicon substrate, aligned using surface acoustic waves (SAWs) on the piezoelectric substrate LiNbO(3) and finally contacted by electron beam lithography. Then, a SAW was used to create an acoustoelectric current in the GaN NWs which was detected as a function of radio-frequency (RF) wave frequency and its power. The presented method and our experimental findings open up a route towards new acoustic charge transport nanostructure devices in a wide bandgap material such as GaN.
authors.affiliation: Experimentalphysik I, Institut für Physik der Universität Augsburg, Universitätsstraße 1, 86135 Augsburg, Germany. School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh,EH14 4AS, UK.
authors.forename: J
authors.initials: J
authors.lastname: Ebbecke
authors.forename: S
authors.initials: S
authors.lastname: Maisch
authors.forename: A
authors.initials: A
authors.lastname: Wixforth
authors.forename: R
authors.initials: R
authors.lastname: Calarco
authors.forename: R
authors.initials: R
authors.lastname: Meijers
authors.forename: M
authors.initials: M
authors.lastname: Marso
authors.forename: H
authors.initials: H
authors.lastname: Lüth