Journal Article

PreJuSER-8488

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png In situ manipulation of scanning tunneling microscope tips without tip holder

Raad, C. ; Graf, K. H.FZJ* ; Ebert, P.FZJ*

2010
American Institute of Physics [S.l.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/16757  doi:10.1063/1.3284508

Abstract: A design for a manipulator system for manipulating bare scanning tunneling microscopy (STM) tips without any tip holder is presented. The extremely stiff and rigid system consists of an ultrahigh vacuum compatible fully three-dimensionally movable gripper module driven by stepping motors and piezomotors. The tips are clamped by hardened tool steel gripper jaws, which are controlled by a stepping motor through levers. The system allows the reproducible manipulation of bare tungsten tips made of wires with diameters of 0.25 nm and having length of only up to 3 mm without damaging the tip or the STM. The tip manipulators' advantage is that the total mass of the scanning piezotube is reduced by removing the mass of a separate tip holder. Thereby, it becomes possible to further increase the resonance frequencies of the STM.

Keyword(s): J ; grippers (auto) ; micromanipulators (auto) ; scanning tunnelling microscopy (auto) ; stepping motors (auto)

Note: The authors thank the Deutsche Forschungsgemeinschaft for financial support.

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Contributing Institute(s):

1. Mikrostrukturforschung (IFF-8)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2010

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