Hybrid memory cell for spin-polarized electron current induced switching and writing/reading process using such memory cell

摘要

The present invention relates to a magnetoresistive hybrid memory cell comprising a first stacked structure comprising a magnetic tunnel junction including first and second magnetic regions stacked in a parallel, overlying relationship separated by a layer of non-magnetic material, wherein said first magnetic region being provided with a fixed first magnetic moment vector and said second magnetic region being provided with a free second magnetic moment vector which is free to be switched between the same and opposite directions with respect to said fixed first magnetic moment vector of said first magnetic region, a second stacked structure being at least partly arranged in a lateral relationship as to said first stacked structure and comprising a third magnetic region being provided with a fixed third magnetic moment vector and said second magnetic region; wherein said first and second structures being arranged in between at least two electrodes in electrical contact therewith. It further relates to a method of writing to and reading of a magnetoresistive hybrid memory cell, wherein a writing voltage pulse is applied to electrodes on both sides of only said second structure, and wherein a reading voltage pulse is applied to electrodes on both sides of only said first structure.