Patent ID: 7989223
Filing Date: 2011-08-02
Classification: B82Y,G11B,G11C,H01F,H01L

Abstract:
1. A method for operating a spin injection device which includes a spin injection part having a spin polarizing part and an injection junction part, and SyAF having a first magnetic layer and a second magnetic layer having different magnitudes of magnetization, and magnetically coupled together antiparallel to each other via a nonmagnetic layer, said first magnetic layer of SyAF and said injection junction part are bonded, said method comprising: injecting a spin polarization electron from said spin injection part by flowing electric current between said spin polarizing part and said second magnetic layer, wherein magnetization of said first and second magnetic layers is reversed while maintained in antiparallel state without applying an external magnetic field, and wherein said flowing electric current is 1 mA or less.