Selected Applications
attoAFM I
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
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 (see attoDRY LAB -> attoMFM I+)
additional AFM head with manual alignment conventional cantilever holder, compatible with standard commercial
cantilevers
Ferroelectric Domains at Low-Temperature Phase
Transitions in BTO
Ferroelectric barium titanate (BTO) exhibits several ferroelectric
phase transitions at low temperatures, resulting in severe structural
changes and domain formation. Using an Attocube AFM I, the group
of Prof. Eng (Institute of Applied Physics, Dresden University of Tech-
nology, Dresden, Germany) has investigated this domain dynamics
in BTO single crystals applying both piezoresponse force microscopy
(PFM) and Kelvin probe force microscopy (KPFM) down to 10 K. The
two images display the PFM signal (a) and surface potential measured
by KPFM (b) in contact and non-contact mode, respectively, over
the same 15 µm x 15 µm sample area at T=220 K (orthorhombic BTO
phase).
(J. Döring, L.M. Eng, and S.C. Kehr. "Low-temperature piezoresponse force micros-
copy on barium titanate." J. Appl. Phys. 120, 84103 (2016))
attoMICROSCOPY
Sophisticated Tools for Science
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