Details
| Original language | English |
|---|---|
| Article number | 241308 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 83 |
| Issue number | 24 |
| Publication status | Published - 27 Jun 2011 |
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.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physical Review B - Condensed Matter and Materials Physics, Vol. 83, No. 24, 241308, 27.06.2011.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Tunable nonlocal coupling between Kondo impurities
AU - Tutuc, D.
AU - Popescu, B.
AU - Schuh, D.
AU - Wegscheider, W.
AU - Haug, R. J.
PY - 2011/6/27
Y1 - 2011/6/27
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=79961219408&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.83.241308
DO - 10.1103/PhysRevB.83.241308
M3 - Article
AN - SCOPUS:79961219408
VL - 83
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 24
M1 - 241308
ER -