Scanning gate microscopy of a nanostructure where electrons interact.
We show that scanning gate microscopy can be used for probing electron-electron interactions inside a nanostructure. We assume a simple model made of two noninteracting strips attached to an interacting nanosystem. In one of the strips, the electrostatic potential can be locally varied by a charged tip. This change induces corrections upon the nanosystem Hartree-Fock self-energies which enhance the fringes spaced by half the Fermi wavelength in the images giving the quantum conductance as a function of the tip position.
Freyn
Axel
A
CEA, IRAMIS, Service de Physique de l'Etat Condensé (CNRS URA 2464), F-91191 Gif-sur-Yvette, France.
Kleftogiannis
Ioannis
I
Pichard
Jean-Louis
JL