2012
DOI: 10.1103/physrevlett.109.257202
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Competition between Kondo Screening and Indirect Magnetic Exchange in a Quantum Box

Abstract: Nanoscale systems of metal atoms antiferromagnetically exchange coupled to several magnetic impurities are shown to exhibit an unconventional reentrant competition between Kondo screening and indirect magnetic exchange interaction. Depending on the atomic positions of the magnetic moments, the total ground-state spin deviates from predictions of standard Ruderman-Kittel-Kasuya-Yosida perturbation theory. The effect shows up on an energy scale larger than the level width induced by the coupling to the environme… Show more

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Cited by 25 publications
(36 citation statements)
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“…This is in agreement with the analysis in Ref. [29], where finite size effects are studied. Therefore, our results are due to the fact we are in a Kondo Box.…”
Section: Resultssupporting
confidence: 92%
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“…This is in agreement with the analysis in Ref. [29], where finite size effects are studied. Therefore, our results are due to the fact we are in a Kondo Box.…”
Section: Resultssupporting
confidence: 92%
“…These effects have been elegantly explained in Refs. [29,180], and are a direct consequence of working on finite systems. Odd chain lengths present a state right at the Fermi level.…”
Section: Single Impurity Resultsmentioning
confidence: 99%
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