Specifications
attoAFM III
General Specifications
type of instrument tuning-fork based AFM with shear-force or standard detection
sensor head specifics etched metal wires, etched or pulled optical fiber probes, STM tips, Akiyama probes
(also compatible with NaugaNeedles commercial tips)
Operation Modes
imaging modes non-contact mode AFM, EFM, SGM
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
optional upgrades AFM/STM mode
Resolution*
measured z-noise density < 16 pm/√Hz
z bit resolution @ 4 K 7.6 pm at 2 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 4.2 μm³ @ 300 K
30 x 30 x 2 μm³ @ 4 K
sample holder ASH/QE/0 quick exchange sample holder and integrated heater with 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)
Options
sample holder upgrade ASH/QE/4CX quick-exchange sample holder with 8 electrical contacts and integrated heater with
calibrated temperature sensor
closed loop upgrade for coarse positioners resistive encoder, range 5 mm, sensor resolution approx. 200 nm, repeatability 1-2 μm
ultra-large scan range upgrade 80 x 80 @ 300 K
125 x 125 @ 4 K
in-situ inspection optics tip/sample monitoring via in-situ LT-LED for illumination, mirrors, lenses and CCD camera (outside
of cryostat)
field of view approx. 3 mm x 2 mm, resolution approx. 20 μm (depending on cryostat: distance
top-flange to field center)
closed loop scanning upgrade interferometric encoders available
The attoAFM III microscope stick
* Resolution may vary depending on applied tip, sample, and cryostat