Jl. Martinezalbertos et al., A STRUCTURAL CHARACTERIZATION OF THE BUFFER LAYER FOR GROWTH OF MAGNETICALLY COUPLED CO CU SUPERLATTICES/, Journal of magnetism and magnetic materials, 121(1-3), 1993, pp. 20-23
The maximum value of the magnetoresistance reported so far has been ob
tained in Co/Cu multilayers grown by sputtering on Si wafers covered w
ith a buffer layer of 50 angstrom of Fe. It has been claimed that this
Fe buffer layer provides a better template for growth than Cu(100) si
ngle crystals. We demonstrate here that Fe films, even when deposited
in UHV conditions, represent a reacted, nonepitaxial template which re
sults in low structural perfection of Co/Cu multilayers.