This title appears in the Scientific Report :
2014
Please use the identifier:
http://dx.doi.org/10.1038/ncomms6417 in citations.
Please use the identifier: http://hdl.handle.net/2128/24459 in citations.
Interplay between the Kondo effect and the Ruderman–Kittel–Kasuya–Yosida interaction
Interplay between the Kondo effect and the Ruderman–Kittel–Kasuya–Yosida interaction
The interplay between the Ruderman–Kittel–Kasuya–Yosida interaction and the Kondo effect is expected to provide the driving force for the emergence of many phenomena in strongly correlated electron materials. Two magnetic impurities in a metal are the smallest possible system containing all these in...
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Personal Name(s): | Prüser, Henning |
---|---|
Dargel, Piet E. / Bouhassoune, Mohammed / Ulbrich, Rainer G. / Pruschke, Thomas / Lounis, Samir / Wenderoth, Martin (Corresponding Author) | |
Contributing Institute: |
Quanten-Theorie der Materialien; IAS-1 JARA-FIT; JARA-FIT Quanten-Theorie der Materialien; PGI-1 |
Published in: | Nature Communications, 5 (2014) S. 5417 |
Imprint: |
London
Nature Publishing Group
2014
|
DOI: |
10.1038/ncomms6417 |
PubMed ID: |
25384417 |
Document Type: |
Journal Article |
Research Program: |
Spin-based and quantum information |
Link: |
OpenAccess OpenAccess OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/24459 in citations.
The interplay between the Ruderman–Kittel–Kasuya–Yosida interaction and the Kondo effect is expected to provide the driving force for the emergence of many phenomena in strongly correlated electron materials. Two magnetic impurities in a metal are the smallest possible system containing all these ingredients and define a bottom-up approach towards a long-term understanding of concentrated/dense systems. Here we report on the experimental and theoretical investigation of iron dimers buried below a Cu(100) surface by means of low-temperature scanning tunnelling spectroscopy combined with density functional theory and numerical renormalization group calculations. The Kondo effect, in particular the width of the Abrikosov–Suhl resonance, is strongly altered or even suppressed due to magnetic coupling between the impurities. It oscillates as a function of dimer separation revealing that it is related to indirect exchange interactions mediated by the conduction electrons. |