Dresden 2009 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 32: Postersession Superconductivity: Josephson Junctions, SQUIDs, Heterostructures, Andreev Scattering, Vortex Physics, Cryodetectors, Measuring Devices, Cryotechnique
TT 32.34: Poster
Mittwoch, 25. März 2009, 14:00–18:00, P1A
Design of a 300 mK, UHV, 9 T scanning tunneling microscope — •Danny Baumann1, Torben Hänke1, Paul Sass1, Christian Hess1, Marko Kaiser2, Ralf Voigtländer2, Dirk Lindackers2, and Bernd Büchner1 — 1IFW Dresden, Institute for Solid State Research, P.O. Box 270116, D-01171 Dresden, Germany — 2IFW Dresden, Bereich Forschungstechnik, P.O. Box 270116, D-01171 Dresden, Germany
We present our progress in assembling an ultra high vacuum (UHV) scanning tunneling microscope (STM). This STM is designed for operating temperatures down to 300 mK and magnetic fields up to 9 T. Our system comprises an in-situ tip exchange and coarse xy-sample positioning system. Furthermore, five electrical leads are available on the sample holder to combine STM with transport measurements. The STM is mounted on a 3He UHV cryostat which is connected to a three-chamber UHV system. In this work we will present first measurements on standard samples at low temperatures and UHV conditions.