26 citations · 86 across the 7 of their papers we have counts for
7 papers
Local signatures of electron-electron scattering in an electronic cavity
Carolin Gold, Beat A. Bräm, Richard Steinacher +7
We image equilibrium and non-equilibrium transport through a two-dimensional electronic cavity using scanning gate microscopy (SGM). Injecting electrons into the cavity through a q…
Imaging signatures of the local density of states in an electronic cavity
Carolin Gold, Beat A. Bräm, Michael S. Ferguson +9
We use Scanning Gate Microscopy to study electron transport through an open, gate-defined resonator in a Ga(Al)As heterostructure. Raster-scanning the voltage-biased metallic tip a…
Scanning gate experiments: from strongly to weakly invasive probes
R. Steinacher, C. Pöltl, T. Krähenmann +8
An open resonator fabricated in a two-dimensional electron gas is used to explore the transition from strongly invasive scanning gate microscopy to the perturbative regime of weak…
Scanning gate imaging in confined geometries
R. Steinacher, A. A. Kozikov, C. Rössler +4
This article reports on tunable electron backscattering investigated with the biased tip of a scanning force microscope. Using a channel defined by a pair of Schottky gates, the br…
Mode specific backscattering in a quantum point contact
A. A. Kozikov, R. Steinacher, C. Rössler +4
We demonstrate a scanning gate grid measurement technique consisting in measuring the conductance of a quantum point contact (QPC) as a function of gate voltage at each tip positio…
Scanning-gate-induced effects and spatial mapping of a cavity
R. Steinacher, A. A. Kozikov, C. Rössler +4
Tailored electrostatic potentials are the foundation of scanning gate microscopy. We present several aspects of the tip-induced potential on the two-dimensional electron gas. First…
Locally induced quantum interference in scanning gate experiments
A. A. Kozikov, R. Steinacher, C. Rössler +4
We present conductance measurements of a ballistic circular stadium influenced by a scanning gate. When the tip depletes the electron gas below, we observe very pronounced and regu…