Ca. Dossantos et B. Rodmacq, INVERTED AND CROSSED HYSTERESIS LOOPS IN AG NI MULTILAYERS/, Journal of magnetism and magnetic materials, 147(3), 1995, pp. 250-252
We report on the observation of inverted magnetic hysteresis loops in
Ag/Ni multilayers. The samples were prepared by triode de sputtering,
at 100 K, with nickel layer thickness of about 8 Angstrom and Ag layer
thicknesses ranging from about 5 to 40 Angstrom. The phenomenon was o
bserved in all the samples measured at temperatures larger than 90 K.