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Specifications
attoAFM I
General Specifications
type of instrument cantilever based AFM with interferometric deflection detection
sensor head specifics attoAFM I+ head feat. alignment-free cantilever holder
tip exchange in less than 2 minutes
alignment-free cantilever holder (default) compatible with PointProbe® Plus XY-Alignment Series by Nanosensors
conventional cantilever holder (optional) compatible with standard commercial cantilevers
Operation Modes
imaging modes contact mode, non-contact mode, constant height, constant force
slope compensation 2 axis scan plane correction
z feedback PI feedback loop for amplitude modulation (AM), phase modulation (PM) or
frequency modulation (FM) using included PLL, constant force
incl. standard techniques AFM
optional upgrades KPFM, PFM, conductive-tip AFM
Resolution*
measured RMS z-noise (constant force @ 4 K, 5 ms pixel time) < 0.05 nm (expected for attoLIQUID)
< 0.10 nm (expected for attoDRY)
< 0.15 nm (guaranteed)
z deflection noise density < 3 pm/√Hz (dependent on laser system)
lateral magnetic resolution < 20 nm (attoLIQUID), < 50 nm (attoDRY)
z bit resolution @ 4 K 57 pm at 15 μm scan range
Sample Positioning
total travel range 5 x 5 x 5 mm³ (open loop)
step size 0.05..3 μm @ 300 K, 10..500 nm @ 4 K
fine scan range 50 x 50 x 24 μm³ @ 300 K
30 x 30 x 15 μm³ @ 4 K
closed loop scanning optional
sample holder ASH/QE/4CX quick-exchange sample holder with 8 electrical contacts,
integrated heater calibrated temperature sensor
Suitable Operating Conditions
temperature range 1.5 K..300 K (dependent on cryostat); mK compatible setup available on
request
magnetic field range 0..15 T+ (dependent on magnet)
operating pressure designed for He exchange gas (vacuum compatible version down to 1E-6 mbar
on request)
Suitable Cooling Systems
titanium housing diameter 48 mm
bore size requirement designed for a 2" (50.8 mm) cryostat/magnet bore
compatible cryostats attoDRY1000/1100/2100
attoLIQUID1000/2000/3000/5000
* Resolution may vary depending on applied tip, sample, and cryostat
The attoAFM I microscope stick