Details
| Original language | English |
|---|---|
| Article number | 125426 |
| Journal | Physical Review B |
| Volume | 98 |
| Issue number | 12 |
| Publication status | Published - 15 Sept 2018 |
Abstract
We study the competition of hole capture between an In(Ga)As quantum dot and a directly adjacent ionized impurity in view of spin-photon interfaces. The Kerr rotation noise spectroscopy at 4.2 K shows that the hole-capture probability of the In(Ga)As quantum dot is about one order of magnitude higher compared to the hole-capture probability of the ionized impurity and suggests that a simultaneous occupation of quantum dot and impurity by a hole is efficiently suppressed due to Coulomb interaction. A theoretical model of interconnected spin and charge noise allows the quantitative specification of all relevant time scales.
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, Vol. 98, No. 12, 125426, 15.09.2018.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Hole-capture competition between a single quantum dot and an ionized acceptor
AU - Wiegand, J.
AU - Smirnov, D. S.
AU - Osberghaus, J.
AU - Abaspour, L.
AU - Hübner, Jens
AU - Oestreich, Michael
N1 - Funding information: We thank K. Pierz (PTB) for providing the sample and M. M. Glazov (Ioffe Institute) for fruitful discussions. We acknowledge the financial support by the joint research project Q.com-H (BMBF 16KIS00107) and the German Science Foundation (DFG) (GRK 1991, OE 177/10-1). The theory was developed under partial support of the Basis Foundation and the Russian Science Foundation (Grant No. 14-12-01067). We thank K. Pierz (PTB) for providing the sample and M. M. Glazov (Ioffe Institute) for fruitful discussions. We acknowledge the financial support by the joint research project Q.com-H (BMBF 16KIS00107) and the German Science Foundation (DFG) (GRK 1991, OE 177/10-1). The theory was developed under partial support of the Basis Foundation and the Russian Science Foundation (Grant No. 14-12-01067).
PY - 2018/9/15
Y1 - 2018/9/15
N2 - We study the competition of hole capture between an In(Ga)As quantum dot and a directly adjacent ionized impurity in view of spin-photon interfaces. The Kerr rotation noise spectroscopy at 4.2 K shows that the hole-capture probability of the In(Ga)As quantum dot is about one order of magnitude higher compared to the hole-capture probability of the ionized impurity and suggests that a simultaneous occupation of quantum dot and impurity by a hole is efficiently suppressed due to Coulomb interaction. A theoretical model of interconnected spin and charge noise allows the quantitative specification of all relevant time scales.
AB - We study the competition of hole capture between an In(Ga)As quantum dot and a directly adjacent ionized impurity in view of spin-photon interfaces. The Kerr rotation noise spectroscopy at 4.2 K shows that the hole-capture probability of the In(Ga)As quantum dot is about one order of magnitude higher compared to the hole-capture probability of the ionized impurity and suggests that a simultaneous occupation of quantum dot and impurity by a hole is efficiently suppressed due to Coulomb interaction. A theoretical model of interconnected spin and charge noise allows the quantitative specification of all relevant time scales.
UR - http://www.scopus.com/inward/record.url?scp=85054489699&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1808.05574
DO - 10.48550/arXiv.1808.05574
M3 - Article
AN - SCOPUS:85054489699
VL - 98
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 12
M1 - 125426
ER -