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attoLIQUID3000
liquid helium based cryostats for variable temperature operation
The attoLIQUID3000 is a liquid helium based cryostat with a 3 He-insert
for operation at temperatures from 0.3 to 300 K. The system is equipped
with special low resistance wiring for attocube positioners used in our
microscopes, as well as a number of coaxial lines and twisted pairs for
customer use. It can be equipped with your choice of superconducting
magnet, e.g. a single solenoid, split coil or 2D/3D vector magnet including
suitable magnet power supply.
All necessary components needed for a convenient operation are included,
such as the renowned attoDAMP anti-vibration cabinet with acoustic
damping, a suitable pump for the 1 K pot, a multi-channel temperature
controller, a liquid helium level meter and probe, a transfer line and all
necessary vacuum fittings.
The most outstanding feature of this system is that the 1 K pot is only
needed to be pumped during recondensation of the 3 He. Afterwards, the
unique design allows to turn off the pump at the 1 K pot, which minimiz-
es the residual vibrations considerably. This is what enables the use of
sensitive techniques such as scanning probe microscopy in this cryostat
at mK temperatures with proven performance (see application section).
PRODUCT KEY FEATURES
• system can be operated without pumping continuously at
1 K pot, hence ultra-low vibrations at base temperature
• liquid 4 He bath cryostat with 50 l liquid helium reservoir
and single-shot 3 He insert
• temperature range: 0.3.. 300 K
• compatible with superconducting magnets up to 12 T
BENEFITS
• conduct scanning probe microscopy measurements at any
temperature between 0.3 and 300 K
• ultra-low mechanical vibration levels because of special
cryogenic layout
• fast 3 He recondensing/ turn-around times
APPLICATION EXAMPLES
• investigation of temperature dependent phenomena at
very low temperature, such as superconducting gap on
organic superconductors
• solid state physics and quantum dot optics
• materials science research on ceramics, polymers, addi-
tives, alloys, ..
• semiconductor device characterization
COMPATIBLE MICROSCOPE SYSTEMS
• attoAFM I, attoMFM I, attoSHPM, attoCFM I, attoCFM II,
attoCFM III, attoAFM III, attoAFM/STM
• on request: attoAFM/CFM, atto3DR