7 papers
Very low resistance Al/Cu joints for use at cryogenic temperatures
Sébastien Triqueneaux, James Butterworth, Johannes Goupy +4
We present two different techniques for achieving low resistance (20 n) contacts between copper and aluminium at cryogenic temperatures. The best method is based on gold…
Thermal Radiation in Rayleigh-Bénard Convection Experiments
P. Urban, T. Králík, P. Hanzelka +4
An important question in turbulent Rayleigh-Bénard convection (RBC) is the effectiveness of convective heat transport, which is conveniently described via the scaling of the Nussel…
Design Evaluation of Serial and Parallel sub-mK Continuous Nuclear Demagnetization Refrigerators
D. Schmoranzer, J. Butterworth, S. Triqueneaux +2
We present the evaluation of two different design configurations of a two-stage PrNi continuous nuclear demagnetization refrigerator. Serial and parallel configurations of the…
A 10 mK hermetic cell for eliminating parasitic heating in cryogen-free dilution refrigerators
David Schmoranzer, Sumit Kumar, Sébastien Triqueneaux +5
Cryogen-free dilution refrigerators generally simplify low temperature research but some types of samples, including superconducting qubits and other nanoelectronic devices, are af…
Cryogenic broadband vibration measurement on a cryogen-free dilution refrigerator
D. Schmoranzer, A. Luck, E. Collin +1
This manuscript reports a set of acceleration measurements in the frequency range from 0 to 50 kHz performed at the mixing chamber plate (2 axes) and the top flange (3 axes) of a c…
Thermal coupling of silicon oscillators in cryogen-free dilution refrigerators
David Schmoranzer, Sumit Kumar, Annina Luck +5
Silicon double paddle osillators (DPO) have been successfully used for measuring the elastic properties of amorphous films down to 10 mK (see for example \cite{Fefferman16,Liu14}).…