The mK Laboratory

The mK lab is still being build up. Inside a shielded room we have a commercial dilution refrigerator supported by an optical table. On top of the table we are building a UHV system similar to the 4K system. First it will consist of a transfer and a sample preparation chamber. An additional chamber for room temperature sample analysis is in the planing stage.

Concept of the mK lab.

Current mK Lab.

At mK temperatures the heat conductance of most materials drops dramatically. As a result special care must be taken to avoid any radiation which might introduce unwanted heat. Therefore, all electrical wires have to be well filtered at low temperatures to allow the tip and sample to be close to the base temperature of the dilution refrigerator. This filtering system and mounts for the STM are currently being built.