attoAFM/MFM I+
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Specifications attoAFM/MFM I+
low temperature atomic force microscope, cantilever based
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, MFM
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
80 x 80 x 24 μm³ @ 300 K
125 x 125 x 15 μm³ @ 4 K
closed loop scanning
yes
closed loop scan resolution (steady state, 100 ms sample time)
1 nm rms typ.
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
Electronics
scan controller and software
ASC500 (for detailed specifications please see attoCONTROL section)
laser
LDM1300 laser/detector module (for detailed specifications please see attoCONTROL section)
Options
additional AFM head with manual alignment
conventional cantilever holder, compatible with standard commercial cantilevers
* Resolution may vary depending on applied tip, sample, and cryostat