We present magnetization measurements in graphene monolayers aligned on hexagonal boron nitride crystals. Besides a sharp diamagnetic response at the Dirac point, we detect singularities at the satellite Dirac points.
Measurements of the switching supercurrent statistics of a superconducting quantum interference device based on bismuth, a second-order topological insulator, reveal that excited Andreev states are surprisingly long-lived
We have measured for the first time the singular orbital magnetism of undoped graphene.
We have probed a phase-biased graphene-superconductor ring via an rf resonator with a microwave pump.
We have measured a surprising collapse of the high frequency emission of a superconducting junction made with a carbon nanotube.