NDLI: A Search for the Predicted Magnetic 5d Surface Atoms W and Re

Content Provider	Springer Nature Link
Author	Beckmann, H. Bergmann, G.
Copyright Year	1998
Abstract	The magnetism of the 5d metals W and Re is investigated with the method of weak localization. We studied W on the surface of Au and Re on the surface of Ag. For both systems the impurity thicknesses are in the range between 1/100 of a monolayer (single impurities) and one monolayer. For single W and Re impurities the dephasing of weak localization is by two to three orders of magnitude smaller than that of a typical magnetic impurity. For the monolayers it is reduced by a factor of about five. A strong temperature dependence of the dephasing suggests that thermally activated fluctuating moments are present. An extrapolation of this temperature dependence towards T = 0 yields no dephasing and therefore no magnetic behavior at T = 0. Numerical calculations predicted that W and Re impurities possess a magnetic moment of about 3.5 μ$_{B}$ on the surface of Ag. These large moments are not found in our experiments.
Starting Page	1173
Ending Page	1184
Page Count	12
File Format	PDF
ISSN	00222291
Journal	Journal of Low Temperature Physics
Volume Number	110
Issue Number	5-6
e-ISSN	15737357
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	1998-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Characterization and Evaluation Materials Condensed Matter Magnetism, Magnetic Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Materials Science

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