▎ 摘 要
Wecombine electrostatic and magnetic confinement to define a quantum dot in bilayer graphene. The employed geometry couples n-doped reservoirs to a p-doped dot. At magnetic field values around B = 2 T, Coulomb blockade is observed. This demonstrates that the coupling of the copropagating modes at the p-n interface is weak enough to form a tunnel barrier, facilitating transport of single charge carriers onto the dot. This result may be of use for quantum Hall interferometry experiments.