Abstract
We fabricate a quantum dot (QD) with tunnel-coupled quantum wires (QWs) to study the electronic states of the QD with the QWs as spin filters. The propagating modes of the QWs are adjusted with gate voltages to be either spin-resolved (n=1) or spin degenerate (n=2) under finite magnetic fields. Only for the n=1 QWs, we observe large and small Coulomb peaks alternating with magnetic field in the filling factor regime of ν=2 to 4, which is assigned to singlet-triplet transitions induced by correlation effects.
| Original language | English |
|---|---|
| Title of host publication | LOW TEMPERATURE PHYSICS |
| Subtitle of host publication | 24th International Conference on Low Temperature Physics - LT24 |
| Pages | 1367-1368 |
| Number of pages | 2 |
| Volume | 850 |
| DOIs | |
| Publication status | Published - 01-12-2006 |
| Event | LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States Duration: 10-08-2006 → 17-10-2006 |
Other
| Other | LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 |
|---|---|
| Country | United States |
| City | Orlando, FL |
| Period | 10-08-06 → 17-10-06 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
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Probing spin states in quantum dots by spin-resolved one-dimensional contacts. / Hitachi, K.; Yamamoto, M.; Tarucha, S.
LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. Vol. 850 2006. p. 1367-1368.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Probing spin states in quantum dots by spin-resolved one-dimensional contacts
AU - Hitachi, K.
AU - Yamamoto, M.
AU - Tarucha, S.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - We fabricate a quantum dot (QD) with tunnel-coupled quantum wires (QWs) to study the electronic states of the QD with the QWs as spin filters. The propagating modes of the QWs are adjusted with gate voltages to be either spin-resolved (n=1) or spin degenerate (n=2) under finite magnetic fields. Only for the n=1 QWs, we observe large and small Coulomb peaks alternating with magnetic field in the filling factor regime of ν=2 to 4, which is assigned to singlet-triplet transitions induced by correlation effects.
AB - We fabricate a quantum dot (QD) with tunnel-coupled quantum wires (QWs) to study the electronic states of the QD with the QWs as spin filters. The propagating modes of the QWs are adjusted with gate voltages to be either spin-resolved (n=1) or spin degenerate (n=2) under finite magnetic fields. Only for the n=1 QWs, we observe large and small Coulomb peaks alternating with magnetic field in the filling factor regime of ν=2 to 4, which is assigned to singlet-triplet transitions induced by correlation effects.
UR - http://www.scopus.com/inward/record.url?scp=33947535495&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33947535495&partnerID=8YFLogxK
U2 - 10.1063/1.2355215
DO - 10.1063/1.2355215
M3 - Conference contribution
SN - 0735403473
SN - 9780735403475
VL - 850
SP - 1367
EP - 1368
BT - LOW TEMPERATURE PHYSICS
ER -