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TT: Tiefe Temperaturen
TT 23: Solids At Low Temperature: Cryogenics
TT 23.6: Talk
Wednesday, March 29, 2006, 16:00–16:15, HSZ 02
Low mechanical loss materials at cryogenic temperatures for interferometric gravitational wave detectors — •Anja Zimmer, Ronny Nawrodt, Sandor Nietzsche, Ralf Neubert, Matthias Thürk, Wolfgang Vodel, and Paul Seidel — Institut für Festkörperphysik, FSU Jena, Helmholtzweg 5, 07743 Jena
High precision instruments like gravitational wave detectors require components with very low thermal noise. This noise can be reduced by cooling down and using materials providing low mechanical loss even at the operating temperature. A special cryogenic measuring setup was used for investigation of the mechanical loss within the temperature range of 5 to 300 K. Experimental results on different materials are discussed focussing on microscopic processes in solids.
This work was supported by the German DFG under contract SFB TR7.