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2009 | 116 | 4 | 513-515
Article title

Spin Precession of Quasi-Bound States in Heterostructures with Spin-Orbit Interaction

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EN
Abstracts
EN
We use a finite-difference model that is capable of describing the single state spin dynamics in a double-barrier AlGaAs heterostructure. The use of Green's functions enables a description of the double-barrier structure by a finite matrix while the interaction with contacts is described by appropriate self-energies. To account for interface roughness scattering, a self-energy Σp_{IR}(E, k) is derived within the random phase approximation. The dominant part is due to in-plane momentum relaxation while a smaller part describing spin-flip scattering is neglected. The former only decreases the state lifetime while the latter can also affect the spin precession frequency.
Keywords
EN
Contributors
author
  • School of Electronic and Electrical Engineering, University of Leeds, Leeds, United Kingdom
  • Institute of Physics, Belgrade, Serbia
author
  • School of Electronic and Electrical Engineering, University of Leeds, Leeds, United Kingdom
author
  • School of Electronic and Electrical Engineering, University of Leeds, Leeds, United Kingdom
author
  • School of Electrical Engineering, University of Belgrade, Belgrade, Serbia
  • School of Electrical Engineering, University of Belgrade, Belgrade, Serbia
author
  • School of Electronic and Electrical Engineering, University of Leeds, Leeds, United Kingdom
References
  • 1. J. Fabian, A. Matos-Abiague, C. Ertler, P. Stano, I. Žutić, Acta Phys. Slov. 57, 565 (2007)
  • 2. L. Meier, G. Salis, I. Shorubalko, E. Gini, S. Schön, K. Ensslin, Nature Phys. 3, 650 (2007)
  • 3. S. Datta, Electronic Transport in Mesoscopic Systems, Cambridge University Press, Cambridge 1995
  • 4. E.N. Economou, Green's Functions in Quantum Physics, Springer, Berlin 2006
  • 5. S. Datta, Quantum Transport: Atom to Transistor, Cambridge University Press, Cambridge 2005
  • 6. R.D. Mattuck, A Guide to Feynman Diagrams in the Many Body Problem, Dover, New York 1992
  • 7. J.J. Sakurai, Modern Quantum Mechanics, Addison-Wesley, Reading (MA) 1994
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv116n420kz
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