Tunneling spectroscopy between one-dimensional helical conductors
Abstract
We theoretically investigate the tunneling spectroscopy of a system of two parallel one-dimensional helical conductors in the interacting, Luttinger liquid regime. We calculate the non-linear differential conductance as a function of the voltage bias between the conductors and the orbital momentum shift induced on tunneling electrons by an orthogonal magnetic field. We show that the conductance map exhibits an interference pattern which is characteristic to the interacting helical liquid. This can be contrasted with the different interference pattern from tunneling between regular Luttinger liquids which is governed by the spin-charge separation of the elementary collective excitations.
Citation
Braunecker , B & Simon , P 2018 , ' Tunneling spectroscopy between one-dimensional helical conductors ' , Physical Review. B, Condensed matter and materials physics , vol. 98 , no. 11 , 115146 . https://doi.org/10.1103/PhysRevB.98.115146
Publication
Physical Review. B, Condensed matter and materials physics
Status
Peer reviewed
ISSN
1098-0121Type
Journal article
Collections
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.