Quantum dot thermometry at ultra-low temperature in a dilution refrigerator with a 4He immersion cell

January 17, 2022 0 Comments

Experiments carried out at a temperature of a few millikelvins require efficient thermalization schemes, low-pass filtering of the measurement strains, and low-noise electronics. Here, we report on the modifications to a business dilution refrigerator with a base temperature of three.5 mK that allow us to decrease the electron temperature to six.7 mK measured from the …