Details
| Original language | English |
|---|---|
| Title of host publication | Physics of Semiconductors |
| Subtitle of host publication | 30th International Conference on the Physics of Semiconductors, ICPS-30 |
| Pages | 301-302 |
| Number of pages | 2 |
| Publication status | Published - 28 Dec 2011 |
| Event | 30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul, Korea, Republic of Duration: 25 Jul 2010 → 30 Jul 2010 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 1399 |
| ISSN (Print) | 0094-243X |
| ISSN (electronic) | 1551-7616 |
Abstract
A lateral quantum dot with approx. 50 electrons is analyzed in high perpendicular magnetic fields. In a regime with two Landau levels (LL) in the quantum dot information about the spin structure is gained by investigating the position of Coulomb blockade peaks. A typical zig-zag pattern is observed which is roughly explained with the so called Constant Interaction model. However, only states from LL0 can be approximated with this model, while for LL1 more complex electron-electron interactions must be included. This is done with spin density functional theory calculations. As a result, full spin polarization is found for LL1, the so called spin droplet.
Keywords
- Coulomb blockade, Quantum dots, single-electron tunneling
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
Cite this
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- BibTeX
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Physics of Semiconductors: 30th International Conference on the Physics of Semiconductors, ICPS-30. 2011. p. 301-302 (AIP Conference Proceedings; Vol. 1399).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Spin Droplet Formation in Quantum Dots
AU - Rogge, M. C.
AU - Räsänen, E.
AU - Haug, R. J.
PY - 2011/12/28
Y1 - 2011/12/28
N2 - A lateral quantum dot with approx. 50 electrons is analyzed in high perpendicular magnetic fields. In a regime with two Landau levels (LL) in the quantum dot information about the spin structure is gained by investigating the position of Coulomb blockade peaks. A typical zig-zag pattern is observed which is roughly explained with the so called Constant Interaction model. However, only states from LL0 can be approximated with this model, while for LL1 more complex electron-electron interactions must be included. This is done with spin density functional theory calculations. As a result, full spin polarization is found for LL1, the so called spin droplet.
AB - A lateral quantum dot with approx. 50 electrons is analyzed in high perpendicular magnetic fields. In a regime with two Landau levels (LL) in the quantum dot information about the spin structure is gained by investigating the position of Coulomb blockade peaks. A typical zig-zag pattern is observed which is roughly explained with the so called Constant Interaction model. However, only states from LL0 can be approximated with this model, while for LL1 more complex electron-electron interactions must be included. This is done with spin density functional theory calculations. As a result, full spin polarization is found for LL1, the so called spin droplet.
KW - Coulomb blockade
KW - Quantum dots
KW - single-electron tunneling
UR - http://www.scopus.com/inward/record.url?scp=84855514148&partnerID=8YFLogxK
U2 - 10.1063/1.3666373
DO - 10.1063/1.3666373
M3 - Conference contribution
AN - SCOPUS:84855514148
SN - 9780735410022
T3 - AIP Conference Proceedings
SP - 301
EP - 302
BT - Physics of Semiconductors
T2 - 30th International Conference on the Physics of Semiconductors, ICPS-30
Y2 - 25 July 2010 through 30 July 2010
ER -