This is a follow-up article that explains in further detail the ability to image electric currents through graphene, the original article can be seen here
Lloyd Hollenberg, deputy director of the Centre for Quantum Computation and Communication Technology (CQC2T) at the University of Melbourne, led a team to develop a special quantum probe— based on an atomic sized color center found only in diamonds— to enable researchers to see the flow of electric currents in graphene.
“Our experiment combines, for the first time, quantum sensing and graphene science,” Hollenberg said in an exclusive interview with R&D Magazine. “Namely, we use tiny quantum sensors, in the form of atomic defects in a diamond, to image the flow of electric currents in a graphene device, revealing how the flow is disrupted by minute cracks and defects.
“Our team has been developing quantum sensing techniques and instruments, trying to harness quantum systems and principles in order to make new types of multimodal sensors offering an unprecedented combination of high spatial resolution and sensitivity.”
The full story is available below.