Small Cavity Nonresonant Tunable Microwave-Frequency Alternating Current Scanning Tunneling Microscope

L. A. Bumm and P. S. Weiss*

Review of Scientific Instruments 66, 4140 (1995).

We have developed a broadly tunable microwave frequency alternating current scanning tunneling microscope which employs a cavity with no resonances in the frequency range used. This results in a low, flat background for spectroscopic measurements with this instrument.