University of Basel’s Professor Dominik Zumbühl and colleagues have succeeded in magnetically cooling a nanoelectronic device to a temperature of 2.8 mK (millikelvin). A chip with a Coulomb blockade thermometer on it is prepared for experiments at extremely low temperatures. Image credit: University of Basel. “Magnetic cooling is based on the fact that a system can cool down when an applied magnetic field is ramped down while any external heat...
