This book is based on the theoretical study of low dimensional quantum effect devices having quantum confinements in one- two- and three- dimensions of the wave vector space such as quantum wells, metal oxide semiconductor field effect transistors, quantum wires, quantum dots, magnetic quantization, magneto quantum size effects, magnetic inversion layers, superlattices, quantum confined superlattices and field assisted transport in nanodevices. The electron transport in semiconductor devices is essentially determined by their respective band structures. Thus, the nature of the electronic...