CaltechAUTHORS
Published July 2002 | Version public
Journal Article Metadata-only

Theoretical Investigations of Spin Splittings and Optimization of the Rashba Coefficient in Asymmetric AlSb/InAs/GaSb Heterostructures

Creators

  • 1. ROR icon California Institute of Technology
  • 2. ROR icon Jet Propulsion Lab

Abstract

We use the Effective Bond Orbital Model (EBOM) method to examine the spin splitting due to the Rashba effect in AlSb/InAs/GaSb asymmetric heterostructures. We have explored different thicknesses of the constituent materials and we have found for the resulting two-dimensional electron gas (2DEG) in the optimized structure a theoretical value of the Rashba constant α_R = 51 × 10⁻¹⁰ eV·cm. This is, to our knowledge, the largest predicted value for this parameter. We provide an intuitive explanation for the behavior of the spins in the 2DEG. Finally, we study the effect of wide layers on the Rashba coefficient.

Additional Information

© 2002 Kluwer Academic Publishers. We gratefully acknowledge the support of the Defense Advanced Research Projects Agency, as monitored by the Office of Naval Research under contract No. N00014-99-1-1006. A part of the work described in this paper was carried out at the Jet Propulsion Laboratory, California Institute of Technology, and was sponsored by the Defense Advanced Research Projects Agency's Spins in Semiconductors (SpinS) program.

Additional details

Identifiers

Eprint ID
99809
Resolver ID
CaltechAUTHORS:20191112-111435523

Funding

Defense Advanced Research Projects Agency (DARPA)
Office of Naval Research (ONR)
N00014-99-1-1006
JPL/Caltech

Dates

Created
2019-11-12
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Updated
2021-11-16
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