Dresden 2017 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 19: Poster Session: Correlated Electrons 1

TT 19.5: Poster

Montag, 20. März 2017, 15:00–19:00, P2-EG

Coupling of Co atoms on Cu(111) through monatomic chains — •Neda Noei, Alexander Weismann, and Richard Berndt — Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, 24098 Kiel

Using a low temperature scanning tunneling microscope we investigated how the Kondo resonance of a single Co atom on Cu(111) changes when it is attached to monatomic Cu chains. Cu chains with lengths up to 100 nm were repeatedly fabricated. They are one type of dislocations which arise after dipping the tip into Cu(111). In order to evaluate a long range interaction between magnetic atoms, Co atoms were attached to the copper chains at different distances from each other. We observed a nonuniform variation of the Kondo resonance in amplitude and width.