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The European Physical Journal B
ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)
Abstract Volume 1 Issue 2 (1998) pp 229-232
Indication of a ferromagnetic submonolayer of ruthenium on palladium
H. Beckmann, G. Bergmann (a)
Department of Physics, University of Southern California, Los Angeles, California 90089-0484, USA
Received: 9 July 1997 / Accepted: 6 November 1997
Abstract: Thin Pd films with submonolayers of Ru are investigated by means of the anomalous Hall effect and weak localization. The anomalous Hall resistance yields the magnetization of the film as a function of the applied magnetic field B. The susceptibility is only weakly temperature dependent. This suggests that the Pd/Ru is weakly ferromagnetic showing large spin wave excitations. The maximum magnetization is found for a coverage of about 0.1 atomic layers of Ru. For larger coverages the Ru moment decreases strongly. This is confirmed by the behavior of the electron dephasing rate determined from magnetoresistance measurements.
PACS. 75.20.HrLocal moment in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions - 75.70.AkMagnetic properties of monolayers and thin films - 73.20.FzWeak localization effects (e.g., quantized states)
(a) e-mail: bergmann@usc.edu
Online publication: February 17, 1998
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