High Frequency 4 Tip Scanning Tunneling Microscope

  Top view of the 4 tip STM Copyright: © Marco Pratzer Compact high frequency 4 tip scanning tunneling microscope

The figure shows our new high frequency 4-tip STM, which allows time resolved measurements up to 200ps. The 4 tips sit in an impedance-matched miniature tip carrier that is interchangeable in situ. The compact STM including damping system sits on a DN200 CF flange. The room temperature microscope will be mounted in a 3-UHV chamber system which will include tip and sample heating, a sputter gun, and LEED optics and MBE system.