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Spin and tunneling dynamics in an asymmetrical double quantum dot with spin-orbit coupling: Selective spin transport device.
- Source :
-
Journal of Applied Physics . 2017, Vol. 122 Issue 11, p114301-1-114301-9. 9p. 9 Graphs, 1 Map. - Publication Year :
- 2017
-
Abstract
- In this article, we study the spin and tunneling dynamics as a function of magnetic field in a one-dimensional GaAs double quantum dot with both the Dresselhaus and Rashba spin-orbit coupling. In particular, we consider different spatial widths for the spin-up and spin-down electronic states. We find that the spin dynamics is a superposition of slow as well as fast Rabi oscillations. It is found that the Rashba interaction strength as well as the external magnetic field strongly modifies the slow Rabi oscillations which is particularly useful for implementing solid state selective spin transport device. [ABSTRACT FROM AUTHOR]
- Subjects :
- *TUNNELING spectroscopy
*MAGNETIC fields
*QUANTUM dots
*SOLID state chemistry
*ATOMS
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 122
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 125281680
- Full Text :
- https://doi.org/10.1063/1.4985797