Silver-Epoxy Microwave Filters and Thermalizers for Millikelvin Experiments

Scheller, C. P. and Heizmann, S. and Bedner, K. and Giss, D. and Meschke, M. and Zumbuhl, D. M. and Zimmerman, J. D. and Gossard, A. C.. (2014) Silver-Epoxy Microwave Filters and Thermalizers for Millikelvin Experiments. Applied physics letters, Vol. 104, H. 21 , 211106.

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Official URL: http://edoc.unibas.ch/dok/A6348376

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We present silver-epoxy filters combining excellent microwave attenuation with efficient wirethermalization, suitable for low temperature quantum transport experiments. Upon minimizingparasitic capacitances, the attenuation reaches 100 dB above 150MHz and—when capacitorsare added—already above 30 MHz. We measure the device electron temperature with a GaAsquantum dot and demonstrate excellent filter performance. Upon improving the sample holder andadding a second filtering stage, we obtain electron temperatures as low as 7.5+/-0.2 mK in metallicCoulomb blockade thermometers.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimentalphysik Quantenphysik (Zumbühl)
UniBasel Contributors:Zumbühl, Dominik M
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Institute of Physics
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:10 Apr 2015 09:12
Deposited On:10 Apr 2015 09:12

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