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Large Rashba Splitting in InAs Quantum Wells due to Electron Wave Function Penetration into the Barrier Layers
Open accessAbstract
We report on zero-field spin splitting of two-dimensional electron systems. Though absent in the unbiased InAs square asymmetric quantum well (SAQW), the Rashba splitting becomes pronounced by applying a positive back-gate voltage. In our SAQW, the Rashba parameter alpha increases with electron density and is tuned by a factor of about 2 using an additional front gate without charging the well. We argue that the band-edge profile provides the important contribution for spin-orbit interaction due to barrier penetration of the envelope wave function. This mechanism can provide the potential for high speed implementation in spintronics.
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Citations
Cited by
Nonballistic Spin-Field-Effect Transistor
Schliemann, J., Egues, J. C., & Loss, D. (2003) · Physical Review Letters · doi:10.1103/physrevlett.90.146801 · Cited by 863
Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
Bernevig, B. A., Orenstein, J., & Zhang, S.-C. (2006) · Physical Review Letters · doi:10.1103/physrevlett.97.236601 · Cited by 589
Spin photocurrents in quantum wells
Ganichev, S. D., & Prettl, W. (2003) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/15/20/204 · Cited by 406
Zitterbewegung of Electronic Wave Packets in III-V Zinc-Blende Semiconductor Quantum Wells
Schliemann, J., Loss, D., & Westervelt, R. M. (2005) · Physical Review Letters · doi:10.1103/physrevlett.94.206801 · Cited by 238
Spin splitting of subband energies due to inversion asymmetry in semiconductor heterostructures
Zawadzki, W., & Pfeffer, P. (2004) · Semiconductor Science and Technology · doi:10.1088/0268-1242/19/1/r01 · Cited by 172
Metadata
- Authors
- Grundler, D.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2000-06-26
- Volume
- 84
- Issue
- 26
- Pages
- 6074-6077
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2082044597
- Cited by
- 782
- References
- 0
- FWCI
- 20.39
- Type
- journal article
- Language
- en
- Open access
- green
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- Grundler, D. (2000). Large Rashba Splitting in InAs Quantum Wells due to Electron Wave Function Penetration into the Barrier Layers. Physical Review Letters. https://doi.org/10.1103/physrevlett.84.6074
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