Scanning Tunnelling Microscopy (STM) is a powerful technique used in Nanotechnology for imaging surfaces at the atomic level. It was invented in 1981 by Gerd Binnig and Heinrich Rohrer, who later received the Nobel Prize in Physics for their groundbreaking work. STM operates by scanning a sharp metal tip very close to the surface to be studied, allowing the measurement of the tunneling current that flows between the tip and the surface.
