Phys.org  December 10, 2019 While numerous techniques have been devised to image electron flows, the need remains for a nanoscale probe capable of simultaneously imaging current and voltage distributions with high sensitivity and minimal invasiveness, in a magnetic field, across a broad range of temperatures and beneath an insulating surface. An international team of researchers (Israel, UK, Japan, USA – Berkeley, Canada) produced a nanoscale detector built from a carbon nanotube transistor that can image the properties of flowing electrons with unprecedented sensitivity. They demonstrated the ability of their technique to visualize local aspects of intrinsically nonlocal transport, as in […]