title: Zinc blende GaAsSb nanowires grown by molecular beam epitaxy.
abstract: We report the growth of GaAsSb nanowires (NWs) on GaAs(111)B substrates by Au-assisted molecular beam epitaxy. The structural characteristics of the GaAsSb NWs have been investigated in detail. Their Sb mole fraction was found to be about 25%. Their crystal structure was found to be pure zinc blende (ZB), in contrast to the wurtzite structure observed in GaAs NWs grown under similar conditions. The ZB GaAsSb NWs exhibit rotational twins around their [111]B growth axis, with twin-free segments as long as 500 nm. The total volumes of GaAsSb segments with twinned and un-twinned orientations, respectively, were found to be equal by x-ray diffraction analysis of NW ensembles.
authors.affiliation: Department of Electronics and Telecommunications, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.
authors.forename: D L
authors.initials: DL
authors.lastname: Dheeraj
authors.forename: G
authors.initials: G
authors.lastname: Patriarche
authors.forename: L
authors.initials: L
authors.lastname: Largeau
authors.forename: H L
authors.initials: HL
authors.lastname: Zhou
authors.forename: A T J
authors.initials: AT
authors.lastname: van Helvoort
authors.forename: F
authors.initials: F
authors.lastname: Glas
authors.forename: J C
authors.initials: JC
authors.lastname: Harmand
authors.forename: B O
authors.initials: BO
authors.lastname: Fimland
authors.forename: H
authors.initials: H
authors.lastname: Weman