Cryogen-free 3He / 4He mixed cooler for generating low temperatures down to below 20 mK with facility for rapid sample change (bottom loading) for the investigation of solid-state-based quantum systems (for more details, see specification).

A cryogen-free 3He / 4He mixed cooler for generating low temperatures down to below 20 mK is being procured. For the investigation of solid-based quantum systems, the mixed cooler must contain a device for rapid sample changes (bottom loading). For this purpose, the mixer cooler must have the technical specifications that enable the experimental investigation of such systems. For this purpose, the mixer cooler must in particular have a sufficiently large sample volume to accommodate the experiments, a sufficiently high cooling capacity and a sufficiently large number of microwave lines. The required technical specifications are listed in the service description.