107 citations · 377 across the 12 of their papers we have counts for
12 papers
Gate-Defined One-Dimensional Channel and Broken Symmetry States in MoS van der Waals Heterostructures
Riccardo Pisoni, Yongjin Lee, Hiske Overweg +7
We have realized encapsulated trilayer MoS devices with gated graphene contacts. In the bulk, we observe an electron mobility as high as 7000~cm/(V s) at a density of 3 $…
Oscillating magnetoresistance in graphene p-n junctions at intermediate magnetic fields
Hiske Overweg, Hannah Eggimann, Ming-Hao Liu +10
We report on the observation of magnetoresistance oscillations in graphene p-n junctions. The oscillations have been observed for six samples, consisting of single-layer and bilaye…
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…
Measuring the local quantum capacitance of graphene using a strongly coupled graphene nanoribbon
D. Bischoff, M. Eich, A. Varlet +3
We present electrical transport measurements of a van-der-Waals heterostructure consisting of a graphene nanoribbon separated by a thin boron nitride layer from a micron-sized grap…
Capacitive coupling in hybrid Graphene-GaAs nanostructures
Pauline Simonet, Clemens Rössler, Tobias Krähenmann +5
Coupled hybrid nanostructures are demonstrated using the combination of lithographically patterned graphene on top of a two-dimensional electron gas (2DEG) buried in a GaAs/AlGaAs…
Graphene nanoribbons: relevance of etching process
Pauline Simonet, Dominik Bischoff, Annina Moser +2
Most graphene nanoribbons in the experimental literature are patterned using plasma etching. Various etching processes induce different types of defects and do not necessarily resu…
Electronic triple-dot transport through a bilayer graphene island with ultrasmall constrictions
Dominik Bischoff, Anastasia Varlet, Pauline Simonet +2
A quantum dot has been etched in bilayer graphene connected by two small constrictions to the leads. We show that this structure does not behave like a single quantum dot but consi…
Fabry-Pérot interference in gapped bilayer graphene with broken anti-Klein tunneling
Anastasia Varlet, Ming-Hao Liu, Viktor Krueckl +7
We report the experimental observation of Fabry-Pérot (FP) interference in the conductance of a gate-defined cavity in a dual-gated bilayer graphene (BLG) device. The high quality…
Finite bias spectroscopy of a three-terminal graphene quantum dot in the multi-level regime
Arnhild Jacobsen, Pauline Simonet, Klaus Ensslin +1
Finite bias spectroscopy measurements of a three-terminal graphene quantum dot are presented. Numerous lines of enhanced differential conductance are observed outside the Coulomb d…
Anomalous sequence of quantum Hall liquids revealing tunable Lifshitz transition in bilayer graphene
Anastasia Varlet, Dominik Bischoff, Pauline Simonet +6
Fermi surface topology plays an important role in determining the electronic properties of metals. In bulk metals, the Fermi energy is not easily tunable at the energy scale needed…
Transport in a three-terminal graphene quantum dot in the multi-level regime
A. Jacobsen, P. Simonet, K. Ensslin +1
We investigate transport in a three-terminal graphene quantum dot. All nine elements of the conductance matrix have been independently measured. In the Coulomb blockade regime accu…