Patent ID: 8947921
Filing Date: 2015-02-03
Classification: G11C,Y10S

Abstract:
1. A method for operating a magnetic element, the magnetic element comprising: a soft ferromagnetic layer having a magnetization that can be freely aligned; a first hard ferromagnetic layer having a magnetization that is fixed at a first low temperature threshold and freely alignable at a first high temperature threshold; a first tunnel barrier layer between the soft ferromagnetic layer and the first hard ferromagnetic layer; a second hard ferromagnetic layer having a magnetization that is fixed at the first low temperature threshold and freely alignable at a second high temperature threshold; and a second tunnel barrier layer; the soft ferromagnetic layer being comprised between the first and second tunnel barrier layers; the method comprising, during a write operation: heating said magnetic element to the first high temperature threshold; applying a first write magnetic field such as to align the magnetization of the first storage layer and the magnetization of the second storage layer in accordance with the first magnetic field; cooling said magnetic element to the first low temperature threshold such as to freeze the magnetization of the first and second storage layers in their aligned state.