  We report on the combination of current-induced spin-orbit torques and giant
magnetoresistance in a single device to achieve all-electrical write and read
out of the magnetization The device consists of perpendicularly magnetized TbCo
and Co layers separated by a Pt spacer. Current injection through such layers
exerts spin-orbit torques and switches the magnetization of the Co layer
between the up and down states while the TbCo magnetization remains fixed.
Subsequent current injection of lower amplitude senses the relative orientation
of the magnetization of the Co and TbCo layers, which results in two distinct
resistance levels for parallel and antiparallel alignment due to the
current-in-plane giant magnetoresistance effect. This device offers a novel
route to a two terminal spintronic memory that can be fabricated with moderate
effort.
