A structure that is well suited to connecting an MTJ device to a CMOS
integrated circuit is described. It is built out of three layers. The
bottom layer serves as a seed layer for the center layer, which is alpha
tantalum, while the third, topmost, layer is selected for its smoothness,
its compatibility with the inter-layer dielectric materials, and its
ability to protect the underlying tantalum. A method for its formation is
also described.