SPINTRONICS DEVICE, AND LOGICAL OPERATION ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a spintronics device high in charge current to spin current conversion efficiency, and capable of providing a high-intensity spin current. SOLUTION: This spintronics device includes: a spin current generation region 30 having a first end face and a second end face facing each other, and formed of a nonmagnetic bipolar conductive metal wherein a hole and an electron have carrier densities and mobilities at comparable levels, and a hole coefficient is zero; a first main electrode 20 arranged on the first end face and formed of a ferromagnetic material for injecting spin-polarized holes into the spin current generation region 30; and a second main electrode 40 arranged on the second end face for injecting electrons into the spin current generation region 30. Holes and electrons are made to be transported in the same direction by Lorentz force, and charge of the holes and that of the electrons are neutralized with each other to provide the spin current. COPYRIGHT: (C)2011,JPO&INPIT