Patent ID: 8860158

Claim:
A spin-transfer torque magnetic random access memory (STTMRAM) element configured to store a state when electrical current is applied thereto, the STTMRAM element comprising: a. a fixed layer with magnetization pinned in the plane of the fixed layer; b. a barrier layer formed on top of the fixed layer; c. a free layer (FL) formed on top of the barrier layer and having in-plane magnetization; d. a junction layer (JL) formed on top of the FL; e. a perpendicular reference layer (PRL) formed on top of the JL with magnetization in a direction perpendicular to the magnetization of the fixed layer, the PRL including a first pinned layer (PL) and a second pinned layer (PL) separated from one another by a top separator layer (TSL), where the magnetization directions of the first pinned layer and the second pinned are anti-parallel relative to each other, the direction of the magnetization of the FL being in-plane prior to the application of electrical current.