Eur. Phys. J. B 26, 7-11 (2002)
https://doi.org/10.1140/epjb/e20020059

Giant moments of Fe and Co on and in rubidium and potassium films

Department of Physics, University of Southern California, Los Angeles, California 90089-0484, USA

Corresponding author: ^a bergmann@usc.edu

Received: 22 September 2001
Revised: 11 December 2001
Published online: 15 March 2002

Abstract

Thin quench-condensed films of Rb and K are covered with 1/100 of a mono-layer of Fe or Co. Then the impurities are covered with several atomic layers of the host. The magnetization of the films is measured by means of the anomalous Hall effect (AHE). The magnetization follows a Brillouin function with a magnetic moment of more than 10 Bohr magnetons for bulk Co and Fe impurities. These moments are much larger than the moments of the atomic configurations of Fe and Co and suggest enhanced magnetic moments of the impurities.