Ultrahigh Vacuum Cryostat System for Extended Low-Temperature Space Environment Testing

Cryostat System for Spacecraft Materials Testing

New variable low-temperature scanning tunneling microscope for use in ultrahigh vacuum

We describe the design and characterization of a new variable low-temperature scanning tunneling microscope @TM) which has been proven to give atomic resolution at temperatures between 77 K and room temperature but which is also capable of performing experiments as low as 4 K. The STM “head” itself consists of a unique cold dewar made up of an upper and lower reservoir connected together by two...

Low temperature vacuum drying – gentle on bacteria and the environment

A variable temperature ultrahigh vacuum atomic force microscope

A new atomic force microscope (AFM) that operates in ultrahigh vacuum (UHV) is described. The sample is held fixed with spring clamps while the AMF cantilever and deflection sensor are scanned above it. Thus, the sample is easily coupled to a liquid nitrogen cooled thermal reservoir which allows AFM operation from ≈ 100 K to room temperature. AFM operation above room temperature is also possibl...

Intramolecular insight into adsorbate-substrate interactions via low-temperature, ultrahigh-vacuum tip-enhanced Raman spectroscopy.

Tip-enhanced Raman spectroscopy (TERS) provides chemical information for adsorbates with nanoscale spatial resolution, single-molecule sensitivity, and, when combined with scanning tunneling microscopy (STM), Ångstrom-scale topographic resolution. Performing TERS under ultrahigh-vacuum conditions allows pristine and atomically smooth surfaces to be maintained, while liquid He cooling minimizes ...