title: 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 the 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.
authors.affiliation: Institute of Theoretical Physics, Chalmers University of Technology and Goteborg University, S-412 96 Goteborg, Sweden.
authors.initials: S
authors.lastname: Eggert