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  • Title: Ruderman-Kittel-Kasuya-Yosida and magnetic-field interactions in coupled Kondo quantum dots.
    Author: Simon P, López R, Oreg Y.
    Journal: Phys Rev Lett; 2005 Mar 04; 94(8):086602. PubMed ID: 15783913.
    Abstract:
    We investigate theoretically the transport properties of two independent artificial Kondo impurities. They are coupled together via a tunable Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction. For strong enough antiferromagnetic RKKY interaction, the impurity density of states increases with the applied in-plane magnetic-field. This effect can be used to distinguish between antiferromagnetic and ferromagnetic RKKY interactions. These results may be relevant to explain some features of recent experiments by Craig et al. [Science 304, 565 (2004)].
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