Platforms for mK Research
state-of-the art dilution refrigerators with fast sample exchange
Crucial criterion for certain experiments such as scanning probe microscopy is the ability for fast turnaround times for tip and sample exchange. This is possible by using fast sample exchange mechanisms, which are available either as so-called top-loaders, or bottom-loaders (see schematics below).
While top-loaders provide slightly higher cooling power, bottom-loaders carry the advantage of significantly lower overall system size, making them the right choice in case of limited ceiling height in existing laboratories. In addition, the cabling in bottom-loaders is routed through the main DR itself, which helps to thermalize the wiring.
Through close collaborations with DR suppliers and leading scientists in several projects over the last 20 years, attocube has gained substantial experience in helping to choose appropriate DRs, providing the right components enabling special applications, and assiting with their integration into the mK environment.
DR with top-loading probe
Top-loading probes constitue the standard solution for fast sample exchange in DRs, which enables both fast turnaround time for sample exchange and high cooling power.
DR with bottom-loading probe
Fast sample exchange via bottom-loading probes further increases the ease-of-use, and significantly decreases the required room height for installation of a DR.
attocube and Bluefors are closely collaborating to help establishing standard platforms and solutions for mK scanning probe microscopy and mK rotators integrated into their DRs for reliable operation.Bluefors specializes in cryogen-free DR systems with a strong focus on the quantum computing and information community.
The company’s aim is to deliver the most reliable and easy-to-operate DRs on the market achieving highest possible quality. Bluefors offers a wide range of standard systems with various options including wiring and superconducting magnets. In addition their systems can be customized to meet the requirements of each individual customer.
Leiden Cryogenics was founded in 1992 by Giorgio Frossati and Alex Kamper, and is specialized in supplying cutting-edge DRs with ultimate specifications. The machines have obtained several world record of lowest temperatures, and are renowned for their unique fit to even most challenging research tasks. With a personal experience of 50 years, Prof. Frossati keeps pushing the limits in dry mK technology.
attocube & Leiden Cryogenics have worked together on several large projects concerning mK scanning probe microscopy successfully.