Tunable nonlocal coupling between Kondo impurities
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Original version
Tutuc, D.; Popescu, B.; Schuh, D.; Wegscheider, W.; Haug, R.J.: Tunable nonlocal coupling between Kondo impurities. In: Physical Review B 83 (2011), Nr. 24, 241308. DOI:
https://doi.org/10.1103/PhysRevB.83.241308
Repository version
To cite the version in the repository, please use this identifier:
https://doi.org/10.15488/2869
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Abstract:
We study the tuning mechanisms of Ruderman-Kittel-Kasuya-Yosida (RKKY) exchange interaction between two lateral quantum dots in the Kondo regime. At zero magnetic field we observe the expected splitting of the Kondo resonance and estimate the nonlocal coupling strength as a function of the asymmetry between the two Kondo temperatures. At finite magnetic fields a chiral coupling between the quantum dots is observed in the Kondo chessboard and we probe the presence of the exchange interaction by analyzing the Kondo temperature with magnetic field. © 2011 American Physical Society.
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Publication type:
Article
Publishing status:
publishedVersion
Publication date:
2011
Keywords english:
RKKY
,
quantum dots
,
magnetic field
DDC:
530 | Physik
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