attoAFM III
PAGE 116
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 mm ³ ( open loop ) step size
0.05 .. 3 μm @ 300 K , 10 .. 500 nm @ 4 K fine scan range
50 x 50 x 4.2 μm ³ @ 300 K 30 x 30 x 2 μm ³ @ 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