474 citations · 12.3k across the 278 of their papers we have counts for
16 papers · 1 filter
Spin orbit coupling at the level of a single electron
V. F. Maisi, A. Hofmann, M. Röösli +5
We utilize electron counting techniques to distinguish a spin conserving fast tunneling process and a slower process involving spin flips in AlGaAs/GaAs-based double quantum dots.…
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…
Non-local polarization feedback in a fractional quantum Hall ferromagnet
Szymon Hennel, Beat A. Braem, Stephan Baer +11
In a quantum Hall ferromagnet, the spin polarization of the two-dimensional electron system can be dynamically transferred to nuclear spins in its vicinity through the hyperfine in…
Spin pairs in a weakly coupled many-electron quantum dot
S. Hellmüller, D. Bischoff, T. Müller +3
We report the observation of an unusually large number of consecutive spin pairs in a weakly coupled many-electron GaAs/AlGaAs quantum dot. The pairs are identified due to pairwise…
Band gap and broken chirality in single-layer and bilayer graphene
Anastasia Varlet, Ming-Hao Liu, Dominik Bischoff +6
Chirality is one of the key features governing the electronic properties of single- and bilayer graphene: the basics of this concept and its consequences on transport are presented…
Tunable Fermi surface topology and Lifshitz transition in bilayer graphene
Anastasia Varlet, Marcin Mucha-Kruczyński, Dominik Bischoff +6
Bilayer graphene is a highly tunable material: not only can one tune the Fermi energy using standard gates, as in single-layer graphene, but the band structure can also be modified…