Abstract
We theoretically study the spin Hall effect (SHE) in multi-terminal quantum-dot system with spin-orbit interaction. First, we analytically formulate the SHE around current peaks of the Coulomb oscillation. The SHE is remarkably enhanced by the resonant tunneling when the energy level spacing is smaller than the level broadening in the quantum dot. Next, we examine the many-body resonance by the Kondo effect in the Coulomb blockade regime. A large SHE is observed in the presence of SU(4) Kondo effect when the level spacing is smaller than the Kondo temperature.
| Original language | English |
|---|---|
| Title of host publication | AIP Conference Proceedings |
| Pages | 647-648 |
| Number of pages | 2 |
| Volume | 1399 |
| DOIs | |
| Publication status | Published - 2011 |
| Event | 30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul, Korea, Republic of Duration: 2010 Jul 25 → 2010 Jul 30 |
Other
| Other | 30th International Conference on the Physics of Semiconductors, ICPS-30 |
|---|---|
| Country | Korea, Republic of |
| City | Seoul |
| Period | 10/7/25 → 10/7/30 |
Fingerprint
Keywords
- Kondo effect
- quantum dot
- resonant tunneling
- spin Hall effect
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Spin Hall effect enhanced by Kondo resonance in semiconductor quantum dot. / Yokoyama, Tomohiro; Eto, Mikio.
AIP Conference Proceedings. Vol. 1399 2011. p. 647-648.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Spin Hall effect enhanced by Kondo resonance in semiconductor quantum dot
AU - Yokoyama, Tomohiro
AU - Eto, Mikio
PY - 2011
Y1 - 2011
N2 - We theoretically study the spin Hall effect (SHE) in multi-terminal quantum-dot system with spin-orbit interaction. First, we analytically formulate the SHE around current peaks of the Coulomb oscillation. The SHE is remarkably enhanced by the resonant tunneling when the energy level spacing is smaller than the level broadening in the quantum dot. Next, we examine the many-body resonance by the Kondo effect in the Coulomb blockade regime. A large SHE is observed in the presence of SU(4) Kondo effect when the level spacing is smaller than the Kondo temperature.
AB - We theoretically study the spin Hall effect (SHE) in multi-terminal quantum-dot system with spin-orbit interaction. First, we analytically formulate the SHE around current peaks of the Coulomb oscillation. The SHE is remarkably enhanced by the resonant tunneling when the energy level spacing is smaller than the level broadening in the quantum dot. Next, we examine the many-body resonance by the Kondo effect in the Coulomb blockade regime. A large SHE is observed in the presence of SU(4) Kondo effect when the level spacing is smaller than the Kondo temperature.
KW - Kondo effect
KW - quantum dot
KW - resonant tunneling
KW - spin Hall effect
UR - http://www.scopus.com/inward/record.url?scp=84855515168&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84855515168&partnerID=8YFLogxK
U2 - 10.1063/1.3666543
DO - 10.1063/1.3666543
M3 - Conference contribution
SN - 9780735410022
VL - 1399
SP - 647
EP - 648
BT - AIP Conference Proceedings
ER -