R.F. Marks, R.F.C. Farrow, et al.
MRS Spring Meeting 1993
Antiferromagnetically coupled permalloy/Au multilayers display giant magnetoresistance (GMR) with large changes in resistance in very low fields. We show that thermal annealing of such structures, exhibiting GMR, leads to a quenching of the magnetoresistance. The detailed structure of the permalloy/Au interfaces has been probed using high-resolution cross-section transmission electron microscopy. On annealing, the Au layers interdiffuse into the permalloy layers, which leads both to rougher permalloy/Au interfaces and to "thinner" Au spacer layers. We infer that the latter results in ferromagnetic coupling of the permalloy layers, which accounts for the reduced GMR. © 1996 American Institute of Physics.
R.F. Marks, R.F.C. Farrow, et al.
MRS Spring Meeting 1993
S.M. Rezende, A. Azevedo, et al.
Physical Review B - CMMP
S.L. Wright, R.F. Marks, et al.
Journal of Crystal Growth
C.H. Back, R. Allenspach, et al.
Science