Abstract
Resonant transmission through electronic quantum states that exist at the zero points of a magnetic field gradient inside a ballistic quantum wire is reported. Since the semiclassical motion along such a line of zero magnetic field takes place in the form of unidirectional snake trajectories, these states have no classical equivalence. The existence of such quantum states has been predicted more than a decade ago by theoretical considerations. We further show how their properties depend on the amplitude of the magnetic field profile as well as on the Fermi energy.
- Received 23 May 2014
- Revised 3 November 2014
DOI:https://doi.org/10.1103/PhysRevB.90.201111
©2014 American Physical Society