Researchers shed light on electron-phonon interactions using 'magic angle' graphene

Researchers from ICN2, ICFO, Tokyo Institute of Technology, TU Eindhoven, National Institute for Material Sciences, MIT and Ludwig Maximilian University have studied electron-phonon interactions and found a remarkable speedup in cooling of twisted bilayer graphene near the 'magic angle': The cooling time is a few picoseconds from room temperature down to 5 kelvin, whereas in pristine bilayer graphene, cooling to phonons becomes much slower for lower temperatures.