Cryogen-Free Cryostat - attoDRY2100

attocube’s series of toploading, dry, low vibration cryostats has been additionally expanded by the attoDRY2100. It offers an automated temperature and magnetic field control from 1.65 K to 300 K, a continuous base temperature of 1.65 K, and user’s choice of superconducting magnet.

The integrated touchscreen allows for effortlessly setting the desired field (B) and temperature (T) without even using a PC. More in depth measurement schemes such as programmable sweeps of B and T are effortlessly doable through a LabVIEW interface and a USB connection. The temperature stability was measured to be more than ±5 mK at 1.5 K over 10  hours. The top loading design allows easy and fast sample exchange, while offering a generous sample space of 49.7 mm in diameter.

The unmatched cooling performance via exchange gas coupling offers a primary cooldown time of the total system of around 15-20 hours, while the turn-around time during sample exchange is only 5-8 hours.

The attoDRY2100 was specifically built to provide an ultra-low vibration measurement system for cryogenic scanning probe experiments without the requirement for liquid helium. Mechanical vibrations developed by the pulse-tube coldhead are decoupled from the measurement system because of a proprietary design. When measured with the attoAFM I, vibration amplitudes of less than 0.15 nm RMS are regularly accomplished (bandwidth of 200 Hz, vertical direction).

Temperature Stability

Temperature Stability

Cooldown Time

Cooldown Time

Finally, the whole phase space of temperature (1.65 K to 300 K) and magnetic field (-9 Tesla to +9 Tesla) can be easily accesed without any detrimental impacts on performance. It is possible to reach the full magnetic field with a sample temperature of 300K and still have a stable temperature (10 mK). It is also possible to carry out field cooling on a sample. Both the temperature and magnetic field controls are automated and can be accessed remotely (via the LabView or a dll) or through the integrated touchscreen.

As shown in the graphs below, the attoDRY2100 (using an atto3DR transport measurement insert) was set to 300K; the target sample temperature. The magnetic field was then set at +9 Tesla, taking about 40 minutes. During the whole test, the sample temperature remained stable within sigma = 23mK. The sample was cooled at 9T back to base temperature within 3.5 hours.

Key Features

  • Cryogen-free, low vibration cryostat platform
  • Temperature control range: 1.65 K to 300 K
  • Optional superconducting magnets up to 9 T
  • Extremely fast field cooling and turn-around times
  • Continuous 1.65 K operation with automated gas handling

Benefits

  • Fast exchange of samples and/or scanning probe tips
  • Scanning probe microscopy experiments in a cryogen-free, low vibration environment
  • Measurements at a wide range of temperature and magnetic field (optional) with highest stability

Application Examples

  • Semiconductor device characterization
  • Solid state physics and quantum dot optics
  • Material science research on ceramics, additives, polymers, alloys,..

Compatible Microscope Systems

  • attoAFM I, attoMFM I, attoAFM III, attoCFM I, attoCFM II, attoSHPM, attoCFM III, atto3DR, attoRAMAN
  • attoAFM/CFM (on request)

Fields of Application

Conductivity Mapping

Conductivity Mapping

Vortex Imaging

Vortex Imaging

Multi-Ferroics Characterization

Multi-Ferroics Characterization

Quantum Dot Spectroscopy

Quantum Dot Spectroscopy

Resonant Fluorescence

Resonant Fluorescence

Transport Measurements

Transport Measurements

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