Patent ID: 8772887
Filing Date: 2014-07-08
Classification: H01L

Abstract:
1. A magnetic device comprising: a first magnetic layer and a second magnetic layer adjacent lower and upper portions of an insulating layer, respectively, and the first magnetic layer and the second magnetic layer each having a perpendicular magnetic anisotropy; a magnetic field adjustment layer overlying the second magnetic layer and having a perpendicular magnetic anisotropy; and a barrier layer formed between the magnetic field adjustment layer and the second magnetic layer, said barrier layer comprising a metal alloy containing a metal selected from the group consisting of tantalum (Ta), ruthenium (Ru), titanium (Ti), palladium (Pd), platinum (Pt), magnesium (Mg), and aluminum (Al), and having a thickness between about 20 to 50Å; wherein the second magnetic layer and the magnetic field adjustment layer are magnetically decoupled from each other.