Scanning Tunneling Microscopy of a Luttinger Liquid
Abstract
Explicit predictions for Scanning Tunneling Microscopy (STM) on interacting one-dimensional electron systems are made using the Luttinger liquid formalism. The STM current changes with distance from an impurity or boundary in a characteristic way, which reveals the spin-charge separation and the interaction strength in the system. The current exhibits Friedel-like oscillations, but also carries additional modulated behavior as a function of voltage and distance, which shows the spin-charge separation in real space. Moreover, very close to the boundary the current is strongly reduced, which is an indication of the interaction strength in the system.
Keywords
Cite
@article{arxiv.cond-mat/9909001,
title = {Scanning Tunneling Microscopy of a Luttinger Liquid},
author = {Sebastian Eggert},
journal= {arXiv preprint arXiv:cond-mat/9909001},
year = {2009}
}
Comments
Final published version. 4 pages in revtex format including 2 epsfig-embedded figures. The latest version in PDF format is available from http://fy.chalmers.se/~eggert/papers/stm.pdf