automated top-loading cryostat with variable temperature & superconducting magnet

low vibrations with free-beam optics in vector magnetic fields

workhorse for quantum optics & magneto-optics applications

variable temperature (1.65 .. 300 K) @ full magnetic field

enables temperature-dependent measurements

automated control via eNSPIRE electronics 

web-server, live plotting & logging, versatile API

At the top of our range of top-loading, closed-cycle cryostat, the attoDRY2100 offers a continuous base temperature of 1.65 K, an automated temperature & magnetic field control from 1.65 K to 300 K and your choice of superconducting magnet. It even allows for full magnetic field even at 300 K with exceptional temperature stability, as well as for field cooling of samples without the need to handle liquid helium. It is hence the best choice as your variable temperature cryostat for any low temperature experiment, be it magnetotransport measurements, confocal microscopy & spectroscopy or scanning probe microscopy.

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 provides an initial cooldown time of the complete system of around 15-20 hours, while the turn-around time during sample exchange is around 5-8 hours.

Last but not least, the closed-cycle cryostat attoDRY2100 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)

cryostats, attodry2100, specifications block


For a detailed definition of used terms and descriptions please visit our Closed-Cycle Cryostats Glossary

General Specifications
technologylow vibration, pulse-tube based closed-cycle cryostat, designed for magneto-optical applications
sample environmentHe exchange gas
sample space49.7 mm diameter probe bore fitting all attocube inserts
sample exchangetop loading system for quick access
usabilityfully automated temp. and mag. field control via integrated touchscreen, web interface or LAN API
vibration & acoustic noise damping systemproprietary low vibration design
Performance Data
temperature control fully automated, including all pumps and valves, touchscreen & remote control via PC
temperature range1.65 .. 300 K (automated control)
base temperature1.65 .. 1.8 K (for standard inserts)
magnetic field controlvia touchscreen, via remote control, via API
max. magnetic field100 % (e.g. 9 T) @ 300 K
cool down time of sampleapprox. 3 .. 5 h (depending on insert)
initial cool down time of system without insert (unattended)15 .. 20 h (system without magnet), 20 .. 24 h (incl. 9 T magnet)
power consumptionmax. 9.0 kW, 7.2 kW steady state
cooling of compressorwater cooling (requires local infrastructure)
Size and Dimensions
cryostat (width x depth x height)1120 x 640 x 1050 mm³
required min. ceiling heightapprox. 2.60 m (depending on magnet)
optional electronics rack (width x  depth x height)640 x 640 x 1050 mm³
Options and Upgrades
superconducting magnetsolenoids: 9 T, 12 T, vector magnets: e.g.: 9/3 T, 9/1/1 T, ...
bipolar magnet power supplyincluded (with optional magnet)
temperature controllerincluded
pumping kitturbomolecular pump with suitable backing pump for sample space preparation
confocal microscopesattoCFM I, attoCFM IV
confocal Raman microscopescryoRAMAN
transport measurementsatto3DR
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Customer Feedback

Prof. C. Schönenberger

Experimental Condensed Matter Physics, University of Basel

We are amazed to have now seen the compact, beautiful looking attoDRY2100 in action in our lab. It is a very convenient dry cryostat that allows for a one-button cooldown to 1.6K that works. Although the installation was done during Corona times, it all went very smoothly to our full satisfaction."

Prof. A. Holleitner

Experimental Semiconductor Physics group, TU Munich

We are absolutely happy with the cooling performance of the attoDRY2100, both concerning base temperature as well as duration to cool it down from room temperature! Therefore, many thanks for developing such a great system!"

Prof. X. Xu

Nanoscale Quantum Optoeletronics Group, University of Washington

For researchers who are concerned with stability and low-temperature performance in a magneto-optical cryostat, the attoDRY 2100 is an excellent choice."

N. P. Wilson

Nanoscale Quantum Optoeletronics Group, University of Washington

I really want to compliment attocube on the performance and elegance of the cooling architecture in the attoDRY2100, as well as the ergonomics and physical design of the system. It is exceptionally well engineered, and is perhaps the most stable and most convenient magneto-optical cryostat on the market."