Magnetic memory slot

A memory cell comprising a pad formed of a stack of regions in thin layers, comprising:

• a first region made of a conductive material;
• a second region made of a magnetic material having a magnetization in a direction perpendicular to the main plane of the pad;
• a third region made of a non-magnetic material having characteristics different from those of the first region;
• said pad integrally resting on a conductive track capable of circulating a programming current of selected direction,
• wherein said pad has an asymmetrical shape, on the one hand with respect to any plane perpendicular to the plane of the layers and parallel to the central axis of the track, and on the other hand with respect to its barycenter,
• whereby the direction of the magnetization in the second layer is programmable by the circulation direction of said programming current, in the absence of an external magnetic field.