In the last decade, graphene has become an exciting platform for electron optical
experiments, in some aspects superior to conventional two-dimensional electron gases …

Electrostatically confined quantum dots in bilayer graphene have shown potential as
building blocks for quantum technologies. To operate the dots, eg, as qubits, a precise …

Bernal-stacked tetralayer graphene (4LG) exhibits intriguing low-energy properties,
featuring two massive sub-bands and showcasing diverse features of topologically distinct …

The achievement of valley-polarized electron currents is a cornerstone for the realization of
valleytronic devices. Here, we report on ballistic coherent transport experiments where two …

Recent experimental progress on Bernal-stacked bilayer graphene (BLG) has shown its
versatility not only in exotic physics but also in practical applications in electronic devices …

Ballistic, gate-defined devices in two-dimensional materials offer a platform for electron
optics phenomena influenced by the material's properties and gate control. We study the ray …

Despite many reports of valley-related phenomena in graphene and its multilayers, current
transport experiments cannot probe valley phenomena without the application of external …