Regensburg 2007 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 17: Poster Session I (Nanostructures at Surfaces; Metal Substrates: Epitaxy and Growth; Methods: Scanning Probe Techniques; Phase Transitions)
O 17.61: Poster
Montag, 26. März 2007, 17:30–20:30, Poster C
Design of a UHV/300 mK/9 T scanning tunneling microscope (STM) system — •Torben Hänke, Grzegorz Urbanik, Christian Hess, Marko Kaiser, Steffen Leßny, Ralf Voigtländer, Dirk Lindackers, and Bernd Büchner — IFW Dresden, Institute for Solid State Research, P.O. Box 270116, D-01171 Dresden, Germany
To study electronic and spin structures of high temperature superconductor (HTS) and related transition metal oxide materials (TMO) with high resolution scanning tunneling spectroscopy (STS) we are designing an ultra high vacuum (UHV) low temperature STM for temperatures down to 300 mK and magnetic fields up to 9 T. The microscope will be placed inside a UHV compatible 3He cryostat which is integrated into a three-chamber UHV system for in situ tip and sample preparation including LEED/Auger analysis and molecular beam epitaxy (MBE). The STM is equipped with a tip-exchange mechanism, x,y-sample positioner and five additional leads to the sample to combine STM with transport measurements. For vibration isolation the entire system is mounted on a rigid supporting frame on air damping stages.