title: Imaging electron wave functions inside open quantum rings.
abstract: Combining scanning gate microscopy (SGM) experiments and simulations, we demonstrate low temperature imaging of the electron probability density |Psi|(2)(x,y) in embedded mesoscopic quantum rings. The tip-induced conductance modulations share the same temperature dependence as the Aharonov-Bohm effect, indicating that they originate from electron wave function interferences. Simulations of both |Psi|(2)(x,y) and SGM conductance maps reproduce the main experimental observations and link fringes in SGM images to |Psi|(2)(x,y).
authors.affiliation: Institut Néel, CNRS and Université Joseph Fourier, BP 166, 38042 Grenoble cedex 9, France.
authors.forename: F
authors.initials: F
authors.lastname: Martins
authors.forename: B
authors.initials: B
authors.lastname: Hackens
authors.forename: M G
authors.initials: MG
authors.lastname: Pala
authors.forename: T
authors.initials: T
authors.lastname: Ouisse
authors.forename: H
authors.initials: H
authors.lastname: Sellier
authors.forename: X
authors.initials: X
authors.lastname: Wallart
authors.forename: S
authors.initials: S
authors.lastname: Bollaert
authors.forename: A
authors.initials: A
authors.lastname: Cappy
authors.forename: J
authors.initials: J
authors.lastname: Chevrier
authors.forename: V
authors.initials: V
authors.lastname: Bayot
authors.forename: S
authors.initials: S
authors.lastname: Huant