Active Peltier Coolers Based on Correlated and Magnon-Drag Metals

Why be passive? This study points to the difference between thermoelectric refrigeration and the use of thermoelectrics in active cooling of $e.g.$ electronics, lasers, or batteries. Unlike in refrigeration, here heat has to be drained from a temperature a00exb00exo00exv00exe that of the heat sink (which will happen naturally, but perhaps not quickly enough). In refrigeration, the most important criterion is the thermoelectric figure of merit Z00exT, but in active cooling a device needs to have high thermal conductivity plus a high power factor. Thus high-Z00exT Peltier modules are actually counterindicated for active cooling{}even though they are sold commercially for it.