Research team achieves high-resolution 2D imaging for graphene devices under high pressure

A research team led by Prof Zhang Zengming from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has combined nitrogen-vacancy (NV) centers in diamond with a diamond anvil cell (DAC) to achieve non-invasive, high-resolution two-dimensional imaging of current density and pressure gradient for graphene devices under high pressure.