AI Article Synopsis
- The study models a core-shell nanowire (CSN) influenced by a uniform magnetic field, which creates unique electron states known as snaking states along the cylinder.
- In strong magnetic fields, these snaking states converge to form energy levels that can impact the electrical conductance.
- The research predicts that at low chemical potentials, the conductance peaks can split due to a transverse electric field, and their amplitude varies when the magnetic field is rotated based on the contact geometry with the nanowire.
Article 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.
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| http://dx.doi.org/10.1021/nl503499w | DOI Listing |
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