Details
| Original language | English |
|---|---|
| Article number | 226404 |
| Journal | Physical Review Letters |
| Volume | 94 |
| Issue number | 22 |
| Publication status | Published - 7 Jun 2005 |
Abstract
In lateral quantum dots, the combined effect of both Dresselhaus and Bychkov-Rashba spin-orbit coupling is equivalent to an effective magnetic field ±BSO which has the opposite sign for sz=±1/2 spin electrons. When the external magnetic field is perpendicular to the planar structure, the field BSO generates an additional splitting for electron states as compared to the spin splitting in the in-plane field orientation. The anisotropy of spin splitting has been measured and then analyzed in terms of spin-orbit coupling in several AlGaAs/GaAs quantum dots by means of resonant tunneling spectroscopy. From the measured values and sign of the anisotropy we are able to determine the dominating spin-orbit coupling mechanism.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Letters, Vol. 94, No. 22, 226404, 07.06.2005.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Spin-Orbit Coupling and Anisotropy of Spin Splitting in Quantum Dots
AU - Könemann, J.
AU - Haug, R. J.
AU - Maude, D. K.
AU - Fal'Ko, V. I.
AU - Altshuler, B. L.
PY - 2005/6/7
Y1 - 2005/6/7
N2 - In lateral quantum dots, the combined effect of both Dresselhaus and Bychkov-Rashba spin-orbit coupling is equivalent to an effective magnetic field ±BSO which has the opposite sign for sz=±1/2 spin electrons. When the external magnetic field is perpendicular to the planar structure, the field BSO generates an additional splitting for electron states as compared to the spin splitting in the in-plane field orientation. The anisotropy of spin splitting has been measured and then analyzed in terms of spin-orbit coupling in several AlGaAs/GaAs quantum dots by means of resonant tunneling spectroscopy. From the measured values and sign of the anisotropy we are able to determine the dominating spin-orbit coupling mechanism.
AB - In lateral quantum dots, the combined effect of both Dresselhaus and Bychkov-Rashba spin-orbit coupling is equivalent to an effective magnetic field ±BSO which has the opposite sign for sz=±1/2 spin electrons. When the external magnetic field is perpendicular to the planar structure, the field BSO generates an additional splitting for electron states as compared to the spin splitting in the in-plane field orientation. The anisotropy of spin splitting has been measured and then analyzed in terms of spin-orbit coupling in several AlGaAs/GaAs quantum dots by means of resonant tunneling spectroscopy. From the measured values and sign of the anisotropy we are able to determine the dominating spin-orbit coupling mechanism.
UR - http://www.scopus.com/inward/record.url?scp=27744536773&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.94.226404
DO - 10.1103/PhysRevLett.94.226404
M3 - Article
AN - SCOPUS:27744536773
VL - 94
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 22
M1 - 226404
ER -