Patent ID: 7528428
Filing Date: 2009-05-05
Classification: B82Y,G11C,H01L

Abstract:
1. A transistor comprising: a ferromagnetic source that is formed with a ferromagnetic body from which spin-polarized conduction carriers are injected; a ferromagnetic drain that is formed with a ferromagnetic body that receives the spin-polarized conduction carriers injected from the ferromagnetic source; a semiconductor layer that is provided between the ferromagnetic source and the ferromagnetic drain, and forms a Schottky junction having a Schottky barrier at each junction interface with the ferromagnetic source and the ferromagnetic drain; and a gate electrode that is formed associated with the semiconductor layer, wherein the Schottky barrier appears on the conduction band side when the spin-polarized conduction carriers are electrons, and the Schottky barrier appears on the valence band side when the spin-polarized conduction carriers are holes, with the spin-polarized conduction carriers being of the same conduction type as that of the semiconductor layer (an accumulation channel type).