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
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.
PACS: 75.20.Hr – Local moment in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions / 71.20.Dg – Alkali and alkaline earth metals / 73.50.-h – Electronic transport phenomena in thin films
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002
