Theoretical investigations of spin splittings in asymmetric AlSb/InAs/GaSb heterostructures and the possibility of electric field induced magnetization

X. Cartoixà, D. Z Y Ting, E. S. Daniel, T. C. McGill

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We use the effective bond orbital model method to examine the spin splitting due to the Rashba effect in AlSb/InAs/GaSb asymmetric heterostructures. We find for the resulting two-dimensional electron gas (2DEG) under study that large theoretical values of the Bychkov-Rashba coefficients in the range of 30 × 10-10 to 50 × 10-10 eV · cm can be achieved. Finally, we present a phenomenon that might lead to a direct observation of the Rashba effect. We derive an expression, valid in the diffusive limit, for the spin polarization of the current resulting from a bias parallel to the plane of the quantum well.

Original languageEnglish (US)
Pages (from-to)309-319
Number of pages11
JournalSuperlattices and Microstructures
Volume30
Issue number6
DOIs
StatePublished - 2001
Externally publishedYes

Fingerprint

Two dimensional electron gas
Heterojunctions
Magnetization
Electric fields
magnetization
Spin polarization
electric fields
Semiconductor quantum wells
electron gas
quantum wells
orbitals
polarization
coefficients
indium arsenide

Keywords

  • 2DEG
  • AlSb
  • Asymmetric
  • GaSb
  • Heterostructure
  • InAs
  • Rashba
  • Spin splitting
  • Two-dimensional electron gas

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Theoretical investigations of spin splittings in asymmetric AlSb/InAs/GaSb heterostructures and the possibility of electric field induced magnetization. / Cartoixà, X.; Ting, D. Z Y; Daniel, E. S.; McGill, T. C.

In: Superlattices and Microstructures, Vol. 30, No. 6, 2001, p. 309-319.

Research output: Contribution to journalArticle

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AU - Daniel, E. S.

AU - McGill, T. C.

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