Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Accurate distance control between a probe and a surface using a
  microcantilever   We demonstrate a method to accurately control the distance between a custom
probe and a sample on a {\mu}m to nm scale. The method relies on the
closed-loop feedback on the angular deflection of an in-contact AFM
microcantilever. High performance in stability and accuracy is achieved in this
method by taking advantage of the small mechanical feedback path between
surface and probe. We describe how internal error sources that find their
origin in the microcantilever and feedback can be minimized to achieve an
accurate and precise control up to 3 nm. In particular, we investigated how
hysteresis effects in the feedback caused by friction forces between tip and
substrate, can be minimized. By applying a short calibration procedure,
distance control from contact to several micrometers probe-sample distance can
be obtained with an absolute nanometer-scale accuracy. The method presented is
compatible with any probe that can be fixed on a microcantilever chip and can
be easily built into existing AFM systems.

17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex