Ag/Fe/Ag and Cr/Fe/Cr trilayers with a single 25nm thick ferromagnetic layer exhibit giant magnetoresistance (GMR) type behavior. The resistance decreases for parallel and transversal magnetic field alignements with a Langevin-type magnetic field dependence up to B=12 T. The phenomenon is explained by a granular interface structure. Results on Fe/Ag multilayers are also interpreted in terms of a granular interface magnetoresistance.
@article{arxiv.cond-mat/0011491,
title = {Giant Magnetoresistance at the Interface of Iron Thin Films},
author = {J. Balogh and L. F. Kiss and A. Halbritter and I. Kézsmárki and G. Mihály},
journal= {arXiv preprint arXiv:cond-mat/0011491},
year = {2016}
}