Scanning Tunneling microscope

Scanning Tunneling Microscope (STM) is an instrument for imaging surfaces at the atomic level. It is based on the concept of quantum tunneling. A good STM resolution is considered to be 0.1nanometer lateral and 0.01nanometer depth. With this resolution, individual atoms within materials are routinely imaged and manipulated.

STM can be used in ultra-high vacuum, air, water, and various other liquid or gas ambient applications as well as in extreme low or extreme high temperatures applications.

  • Controlling Quantum States Atom by Atom

    Controlling Quantum States Atom by Atom | Using the tip of a scanning tunnel microscope, a single xenon atom (yellow) is being moved from a quantum box (blue), thus specifically altering its electronic quantum state. (Image: University of Basel, Department of Physics)

    An international consortium led by researchers at the University of Basel has developed a method to precisely alter the quantum mechanical states of electrons within an array of quantum boxes. The method can be used to investigate the interactions between various types of atoms and electrons, which is essential for future quantum technologies, as the group reports in the journal Small.