liquid helium based cryostats for variable temperature operation

he bath cryostat with variable temperature insert

temperature range: 1.8 . . 300 K

attoDAMP anti-noise & -vibrations cabinet

enables sensitive measurements like LT-SPM

superconducting (vector) magnets up to 12 T

enables MFM, SHPM, NV center magnetometry

attocube‘s attoLIQUID2000 superconducting magnet system is based on highly efficient liquid Helium bath cryostats with 50 l cryogenic liquid reservoir, but also includes a variable temperature insert (VTI) for convenient temperature control in the range between 1.8 K and 300 K.
The system includes all necessary components needed for the operation such as the renowned attoDAMP anti-vibration cabinet with acoustic damping, a suitable rotary pump for the VTI, a dual channel temperature controller, a liquid helium level meter and probe, a transfer line and all necessary vacuum fittings.

The system can be equipped with your choice of superconducting magnet, be it a single solenoid (up to 12 T), split coils or 2D/3D vector magnets, including a suitable magnet power supply and the superconducting leads. The magnet can be used in driven or in persistent mode.

Cryogenic Tablet


General Specifications
technologyliquid helium bath cryostat with VTI, vacuum isolation, vapor shielded (LN2 shielded on request)
liquid helium dewar50 l capacity, vacuum isolation, vapor shielded (LN2 shielded on request)
sample environmentHe exchange gas
sample space2" diameter probe bore fitting all attocube inserts
sample exchangetop loading system for quick access
needle valve blockage preventioncapillary heater close to needle valve
vibration & acoustic noise damping systemdewar isolated and suspended in attoDAMP cabinet
Performance Data
temperature range1.8 .. 300 K
estimated liquid helium static loss rateapprox. 0.35 l/hr (standard edition, without insert)
cool down time of sampleapprox. 30 min. (depending on insert and acceptable helium consumption)
cool down time of system (system incl. 9 T magnet)approx. 6 .. 24 h
cool down time of system (system without magnet)approx. 6 .. 24 h
temperature stability< ±0.1 %
Size and Dimensions
cryostat (width x depth x height)approx. 900 x 750 x 1500 mm³ (including attoDAMP; depending on magnet choice)
required min. ceiling heightapprox. 3.50 m (depending on magnet)
optional electronics rack (width x  depth x height)640 x 640 x 1350 mm³
Options and Upgrades
superconducting magnetsolenoids: 7, 9, 12 T, vector magnets: e.g.: 8/2 T, 9/3 T, 9/1/1 T, ...
bipolar magnet power supplyincluded (with optional magnet)
temperature controllerincluded
pumping kitVTI pumping kit included
helium transfer lineincluded
helium lever meterincluded
confocal microscopesattoCFM I, attoCFM II, attoCFM III, attoCFM IV
confocal Raman microscopesattoRAMAN
atomic force microscopesattoAFM I , AFM upgrade options (MFM, KPFM, PFM, conductive-tip AFM), attoAFM III
scanning Hall probe microscopesattoSHPM
combined atomic and confocal microscopeattoAFM/CFM (on request)
transport measurementsatto3DR
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