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Giant moments of Fe and Co on and in rubidium aaand potassium films |
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| Authors: | M Hossain G Bergmann |
| Institution: | (1) Department of Physics, University of Southern California, Los Angeles, California 90089-0484, USA, US |
| 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. Received 22 September 2001 and Received in final form 11 December 2001 |
| Keywords: | 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 |
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