aNexus attoDRY2200

automated toploading ultra-low vibrations cryostat for ultra-sensitive SPM measurements

To meet the escalating demands of groundbreaking technologies like quantum sensing (ODMR), 2D magnets, and skyrmions, closed-cycle cryostats must advance to new levels of vibration stability, enabling nanometer lateral resolution while retaining variable magnetic field capabilities.

Answering these demands, the attoDRY2200 represents attocube’s solution, poised to democratize access to these cutting-edge technologies. Featuring a proprietary ultra-efficient vibration-damping system, a selection of vector magnets, and an automated, user-friendly variable temperature control, this cryostat stands as the optimal choice for implementing state-of-the-art SPM measurements.

The attoDRY2200 streamlines operations with its fully automated cooldown process from 300K to a base temperature as low as 1.65K, covering the entire spectrum in between. Supported by automatic magnetic field control, the superconducting vector magnets ensure easy access to maximum magnetic field strengths across the temperature range.

With unmatched cooling performance via exchange gas coupling, the attoDRY2200 achieves an initial cooldown time of approximately 15-20 hours for the complete system, with a turnaround time during sample exchange averaging 5-8 hours. The integrated touchscreen interface enhances user convenience, enabling seamless adjustment of desired field (B) and temperature (T) settings without the need for a PC.

Elaborate measurement schemes, including programmable sweeps of both magnetic field (B) and temperature (T), are easily achievable through versatile application programming interfaces (APIs). The top-loading design facilitates swift and hassle-free sample exchange, offering a spacious sample space measuring 49.7 mm in diameter.

The attoDRY2200 closed-cycle cryostat represents a truly unique ultra-low vibration measurement platform for cryogenic scanning probe experiments, eliminating the need for liquid helium. Enhanced by an additional damping system, mechanical vibrations generated by the pulse-tube coldhead are effectively decoupled from the sample space. Internal application measurements have validated an exceptional lateral stability in our scanning probe microscopes. Consequently, the lateral resolution achievable in atomic force microscopy matches or even surpasses the performance of previous liquid-helium-based variable-temperature magnet cryostats.

The attoDRY2200 sets the stage for ultra-sensitive scanning probe microscopy investigations across hot topics such as 2D materials, domain walls, multiferroics, or nanostructured superconducting samples.