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.
|technology||liquid helium bath cryostat with VTI, vacuum isolation, vapor shielded (LN2 shielded on request)|
|liquid helium dewar||50 l capacity, vacuum isolation, vapor shielded (LN2 shielded on request)|
|sample environment||He exchange gas|
|sample space||2" diameter probe bore fitting all attocube inserts|
|sample exchange||top loading system for quick access|
|needle valve blockage prevention||capillary heater close to needle valve|
|vibration & acoustic noise damping system||dewar isolated and suspended in attoDAMP cabinet|
|temperature range||1.8 .. 300 K|
|estimated liquid helium static loss rate||approx. 0.35 l/hr (standard edition, without insert)|
|cool down time of sample||approx. 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 height||approx. 3.50 m (depending on magnet)|
|optional electronics rack (width x depth x height)||640 x 640 x 1350 mm³|
|Options and Upgrades|
|superconducting magnet||solenoids: 7, 9, 12 T, vector magnets: e.g.: 8/2 T, 9/3 T, 9/1/1 T, ...|
|bipolar magnet power supply||included (with optional magnet)|
|pumping kit||VTI pumping kit included|
|helium transfer line||included|
|helium lever meter||included|
|confocal microscopes||attoCFM I, attoCFM II, attoCFM III, attoCFM IV|
|confocal Raman microscopes||attoRAMAN|
|atomic force microscopes||attoAFM I , AFM upgrade options (MFM, KPFM, PFM, conductive-tip AFM), attoAFM III|
|scanning Hall probe microscopes||attoSHPM|
|combined atomic and confocal microscope||attoAFM/CFM (on request)|
Fields of Applications
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.
Imaging and scanning probe microscopy of surface properties on the nanoscale at variable temperatures down to milli Kelvin and combination with high magnetic fields.