title: Signature of snaking states in the conductance of core-shell nanowires.
abstract: We model a core-shell nanowire (CSN) by a cylindrical surface of finite length. A uniform magnetic field perpendicular to the axis of the cylinder forms electron states along the lines of zero radial field projection, which can classically be described as snaking states. In a strong field, these states converge pairwise to quasidegenerate levels, which are situated at the bottom of the energy spectrum. We calculate the conductance of the CSN by coupling it to leads and predict that the snaking states govern transport at low chemical potential, forming isolated peaks, each of which may be split in two by applying a transverse electric field. If the contacts with the leads do not completely surround the CSN, as is usually the case in experiments, the amplitude of the snaking peaks changes when the magnetic field is rotated, determined by the overlap of the contacts with the snaking states.
authors.affiliation: School of Science and Engineering, Reykjavik University , Menntavegur 1, IS-101 Reykjavik, Iceland.
authors.forename: Tomas Orn
authors.initials: TO
authors.lastname: Rosdahl
authors.forename: Andrei
authors.initials: A
authors.lastname: Manolescu
authors.forename: Vidar
authors.initials: V
authors.lastname: Gudmundsson
keywords: InAs; conductance calculations; contact geometry; core−shell nanowires; electron states; perpendicular magnetic field