273 citations · 304 across the 4 of their papers we have counts for
7 papers · 1 filter
Strong g-Factor Anisotropy in Hole Quantum Dots Defined in Ge/Si Nanowires
S. Roddaro, A. Fuhrer, C. Fasth +3
We demonstrate fully tunable single and double quantum dots in a one-dimensional hole system based on undoped Ge/Si core-shell nanowire heterostructures. The local hole density alo…
Colors Of Graphite On Silicon Dioxide
S. Roddaro, P. Pingue, V. Piazza +2
Monoatomic layers of graphite can be electrically contacted and used as building blocks for new promising devices. These experiment are today possible thanks to the fact that very…
Classical-to-stochastic Coulomb blockade cross-over in aluminum arsenide wires
J. Moser, S. Roddaro, D. Schuh +3
We report low-temperature differential conductance measurements in aluminum arsenide cleaved-edge overgrown quantum wires in the pinch-off regime. At zero source-drain bias we obse…
Aluminum arsenide cleaved-edge overgrown quantum wires
J. Moser, T. Zibold, S. Roddaro +5
We report conductance measurements in quantum wires made of aluminum arsenide, a heavy-mass, multi-valley one-dimensional (1D) system. Zero-bias conductance steps are observed as t…
Particle-hole symmetric Luttinger liquids in a quantum Hall circuit
Stefano Roddaro, Vittorio Pellegrini, Fabio Beltram +2
We report current transmission data through a split-gate constriction fabricated onto a two-dimensional electron system in the integer quantum Hall (QH) regime. Split-gate biasing…
Quasi-particle tunneling at a constriction in a fractional quantum Hall state
Stefano Roddaro, Vittorio Pellegrini, Fabio Beltram
Split-gate constrictions can be used to produce controllable scattering in a fractional quantum Hall state and constitute a very versatile model system for the investigation of non…