Details
| Original language | English |
|---|---|
| Title of host publication | Physics of Semiconductors |
| Subtitle of host publication | Proceedings of the 31st International Conference on the Physics of Semiconductors, ICPS 2012 |
| Pages | 305-306 |
| Number of pages | 2 |
| Publication status | Published - 31 Dec 2013 |
| Event | 31st International Conference on the Physics of Semiconductors, ICPS 2012 - Zurich, Switzerland Duration: 29 Jul 2012 → 3 Aug 2012 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 1566 |
| ISSN (Print) | 0094-243X |
| ISSN (electronic) | 1551-7616 |
Abstract
The competition between the Kondo effect and the Ruderman-Kittel-Kasuya- Yoshida (RKKY) interaction is investigated in a double quantum dots system, coupled via a central open conducting region. A perpendicular magnetic field induces the formation of Landau Levels which in turn give rise to the so-called Kondo chessboard pattern in the transport through the quantum dots. The two quantum dots become therefore chirally coupled via the edge channels formed in the open conducting area. In regions where both quantum dots exhibit Kondo transport the presence of the RKKY exchange interaction is probed by an analysis of the temperature dependence. The thus obtained Kondo temperature of one dot shows an abrupt increase at the onset of Kondo transport in the other, independent of the magnetic field polarity, i.e. edge state chirality in the central region.
Keywords
- Kondo effect, Quantum Dots, RKKY interaction
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
Cite this
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Physics of Semiconductors: Proceedings of the 31st International Conference on the Physics of Semiconductors, ICPS 2012. 2013. p. 305-306 (AIP Conference Proceedings; Vol. 1566).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - RKKY interaction in a chirally coupled double quantum dot system
AU - Heine, A. W.
AU - Tutuc, D.
AU - Zwicknagl, G.
AU - Schuh, D.
AU - Wegscheider, W.
AU - Haug, R. J.
PY - 2013/12/31
Y1 - 2013/12/31
N2 - The competition between the Kondo effect and the Ruderman-Kittel-Kasuya- Yoshida (RKKY) interaction is investigated in a double quantum dots system, coupled via a central open conducting region. A perpendicular magnetic field induces the formation of Landau Levels which in turn give rise to the so-called Kondo chessboard pattern in the transport through the quantum dots. The two quantum dots become therefore chirally coupled via the edge channels formed in the open conducting area. In regions where both quantum dots exhibit Kondo transport the presence of the RKKY exchange interaction is probed by an analysis of the temperature dependence. The thus obtained Kondo temperature of one dot shows an abrupt increase at the onset of Kondo transport in the other, independent of the magnetic field polarity, i.e. edge state chirality in the central region.
AB - The competition between the Kondo effect and the Ruderman-Kittel-Kasuya- Yoshida (RKKY) interaction is investigated in a double quantum dots system, coupled via a central open conducting region. A perpendicular magnetic field induces the formation of Landau Levels which in turn give rise to the so-called Kondo chessboard pattern in the transport through the quantum dots. The two quantum dots become therefore chirally coupled via the edge channels formed in the open conducting area. In regions where both quantum dots exhibit Kondo transport the presence of the RKKY exchange interaction is probed by an analysis of the temperature dependence. The thus obtained Kondo temperature of one dot shows an abrupt increase at the onset of Kondo transport in the other, independent of the magnetic field polarity, i.e. edge state chirality in the central region.
KW - Kondo effect
KW - Quantum Dots
KW - RKKY interaction
UR - http://www.scopus.com/inward/record.url?scp=84907355390&partnerID=8YFLogxK
U2 - 10.1063/1.4848407
DO - 10.1063/1.4848407
M3 - Conference contribution
AN - SCOPUS:84907355390
SN - 9780735411944
T3 - AIP Conference Proceedings
SP - 305
EP - 306
BT - Physics of Semiconductors
T2 - 31st International Conference on the Physics of Semiconductors, ICPS 2012
Y2 - 29 July 2012 through 3 August 2012
ER -