Organic molecules for quantum detection
A Franco-British research team has developed a luminous organic molecule capable of revealing its quantum spin state by a simple change of colour, a result that opens up a new …
Supercurrent noise in a phase-biased superconductor-normal ring in thermal equilibrium
We manage to measure the supercurrent noise in a superconductor-normal-superconductor (SNS) junctions. This gives important information on the dynamics of the junction.
Paramagnetic Singularities of the Orbital Magnetism in Graphene with a Moiré Potential
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.
Characterizing the helical Andreev states of a second-order topological insulator
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
Detection of graphene’s divergent orbital diamagnetism at the Dirac point
We have measured for the first time the singular orbital magnetism of undoped graphene.
Microwave photoassisted dissipation and supercurrent of a phase-biased graphene-superconductor ring
We have probed a phase-biased graphene-superconductor ring via an rf resonator with a microwave pump.
Collapse of the Josephson Emission in a Carbon Nanotube Junction
We have measured a surprising collapse of the high frequency emission of a superconducting junction made with a carbon nanotube.