automated top-loading cryostat with superconducting magnet
cryogen-free & low vibration cryostat platform
no liquid helium required & enables SPM
automated gas handling system
user-friendly even for cryo-beginners
low Temp. (4 K) & high magnetic fields (up to 9 T)
quantum optics & magneto-optics applications
The attoDRY1100 offers a truly unique low temperature measurement platform with a fully automated gas handling system. The integrated touchscreen allows for conveniently setting the desired field (B) and temperature (T) without even using a PC. More elaborate measurement schemes such as programmable sweeps of B and T are easily possible via a USB connection and a LabVIEW interface.
The top-loading design enables quick and easy sample exchange, while offering a generous sample space of 49.7 mm in diameter. The unmatched cooling performance via exchange gas coupling enables probe cooldown times as short as 1-2 hours. The initial cooldown time of the complete system is around 10-15 hours including a 9 T magnet. The temperature stability was measured to be better than ±5 mK over 14 hours at 4 K.
Last but not least, the attoDRY1100 was specifically designed to provide an ultra-low vibration measurement platform for cryogenic scanning probe experiments without the need for liquid helium. Due to a proprietary design, mechanical vibrations created by the pulse-tube coldhead are decoupled from the measurement platform. When measured with the attoAFM I, vibration amplitudes of less than 0.15 nm RMS are routinely achieved (bandwidth of 200 Hz, vertical direction)1
1 Further reading: Quacquarelli, F.P, et al., „Scanning Probe Microscopy in an Ultra-Low Vibration Closed-Cycle Cryostat: Skyrmion Lattice Detection and Tuning Fork Implementation“, Microscopy Today, 23(6), 12-17 (2015)
|atomic force microscopes||attoAFM I , AFM upgrade options (MFM, KPFM, PFM, conductive-tip AFM), attoAFM III (on request)|
|scanning Hall probe microscopes||attoSHPM|
|confocal microscopes||attoCFM I, attoCFM II, attoCFM III, attoCFM IV|
|confocal Raman microscopes||attoRAMAN|
|base temperature||4 K (guaranteed), 3.2 (expected)|
|magnetic field control||via touchscreen, via remote control|
|Max. magnetic field||100 % (e.g. 9 T) @ 4 K sample temperature, 67% (e.g. 6 T out of 9 T) @300 K sample temperature, 100 % guaranteed for temperature between 4 and 10 K, 67% guaranteed, for temperature between 10 and 300|
|cool down time of sample||approx. 2 h (depending on insert)|
|cool down time of system (system incl. 9 T magnet)||approx. 10 .. 15 h (unattended)|
|cool down time of system (system without magnet)||approx. 5 .. 10 h (unattended)|
|temperature stability||< ± 10 mK expected (4 .. 50 K), < ± 25 mK guaranteed (4 .. 50 K)|
|cooling power at sample location||> 75 mW @ 10 K|
|temperature control||Fully automated, including all pumps and valvesTouchscreen & remote control via PC|
|temperature range||4 .. 300 K|
|field cooling possible||no|
|nominal cooling power||> 900 mW @ 4.2 K|
|power consumption||max. 9.0 kW, 7.2 kW steady state|
|cooling of compressor||water cooling (requires local infrastructure)|
|Size and Dimensions|
|cryostat (width x depth x height)||1120 x 640 x 1050 mm³ (depending on magnet choice)|
|required min. ceiling height||approx. 2.60 m ( depending on magnet)|
|optional electronics rack (width x depth x height)||640 x 640 x 1050 mm³|
|technology||ultra-low vibration, pulse-tube based closed-cycle cryostat, designed for scanning probe microscopy applications|
|sample environment||He exchange gas, 4 pressure ranges, fully automated gas handling|
|sample space||49.7 mm diameter probe bore fitting all attocube inserts|
|sample exchange||top loading system for quick access, Automatic gas handling|
|usability||fully automated temperature and magnetic field control via integrated touchscreen, USB interface for remote control|
|vibration & acoustic noise damping system||proprietary low vibration design|
|Options and Upgrades|
|superconducting magnet||9 T (other magnets on request)|
|bipolar magnet power supply||included (with optional magnet)|
Fields of Applications
Imaging and scanning probe microscopy of surface properties on the nanoscale at variable temperatures down to milli Kelvin and combination with high magnetic fields.
Optics and Spectroscopy
Confocal microscopy and nanoscale spectroscopy at low temperatures and in high magnetic fields on quantum dots, NV centers, 2D materials, nanowires and other materials.
Magnetotransport measurements on mesoscopic structures at variable temperatures and in high magnetic fields.
Systems for microscopy and nanoscale analysis of material properties at ambient and low temperature and in high magnetic fields.