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Lecture Wilfred G. van der Wiel


13 July 2012 FWN-Building 5113.0201, Nijenborgh 4, 9747 AG, Groningen
Speaker: Prof. Dr. Wilfred G. van der Wiel
Affiliation: Mesa+ Institute of Technology, University of Twente
Title: Tunable molecular spin doping of a metal
Date: Fri Jul 13, 2012
Start: 15.00
Location: FWN-Building 5113.0201
Host: V.H. van der Wal
Telephone: +31 50 363 4974


The mutual interaction of localized magnetic moments and their interplay with itinerant conduction electrons in a solid is a key fundamental topic in solid-state physics. Here, we present a novel, facile molecular fabrication method for inserting isolated localized magnetic moments in a gold film with tunable density [1]. Kondo and weak localization measurements demonstrate that the magnetic impurity concentration can be systematically varied up to ~800 ppm concentration without any sign of inter-impurity interaction, or undesired clustering often suffered from in alternative methods. Our results indicate that even for inter-impurity distances far below the Kondo length scale no coupling of magnetic impurities in gold occurs.

Last modified:22 October 2012 2.30 p.m.