CUSTOMER FEEDBACK
Dr. Stefan Heun
The attoLIQUID3000 with the attoDAMP anti-vibration cabinet
has been serving us very well as mK platform for scanning gate
microscopy since 2008. Its handling is straightforward and easy,
and due to the special 1 K pot design, vibrations are of no big
concern even at base temperature.
(Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, Italy)
Application examples
General Specifications
technology liquid helium bath cryostat with 3He insert
vacuum isolation, vapor shielded (LN2 shielded on request)
liquid helium dewar 50 l capacity
liquid nitrogen shield (capacity 45l)
sample environment cryogenic vacuum, sample is cooled via braids
sample space 2" diameter probe bore fitting all attocube inserts
vibration & acoustic noise damping system dewar isolated and suspended in attoDAMP cabinet
Performance Data
base temperature approx. 270 mK (1 K pot ON, no load)
approx. 350 mK (1 K pot OFF, incl. microscope)
estimated liquid helium static loss rate < 0.35 l/h (incl. microscope and wiring)
cool down time of sample approx. 3 h
cool down time of system (system without
magnet) approx. 6 .. 24 h
cool down time of system (system incl. 9 T
magnet) approx. 6 .. 24 h
³He regeneration time typ. 30 min
temperature stability ±3 mK for T < 1.2 K
cooling power at sample location approx. 150 μW @ 350 mK for 12.5 hours
(1 K pot ON, no load)
additional heat load when scanning approx. 10-15 μW per μm/s scan speed
thermometry control thermometer on charcoal sorption pump, thermometer
on 1 K pot with standard calibration, RuO2 thermometer on
³He pot
Vortex Imaging
Dimensions
cryostat (width x depth x height) 800 x 800 x 1800 mm³ (including attoDAMP; depending on
magnet choice)
optional electronics rack (width x depth x
height) 640 x 640 x 1350 mm³
Options
Scanning Tunneling
Microscopy
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)
temperature controller included
pumping kit 1 K pot pumping kit included
helium transfer line included
helium lever meter included
Scanning Gate
Microscopy
attoLIQUID
Liquid Research Cryostats