Progress in Spinconversion and its Connection with Band Crossing

Spinconversion is a collective concept underlying spin mediated energy interconversion among electricity, light, sound, vibration, and heat. Particularly in the last couple of decades, increasing research efforts result enhancements spinconversion efficiencies discovery novel mechanisms. Here, an overview progress layed out. In particular, involvement band crossings at which quasiparticles are formed with consequences beyond that efficient spinconverison discussed.