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

doi:10.1006/spmi.2002.1021

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

Physiology & Biomedical Engineering

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

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 language	English (US)
Pages (from-to)	309-319
Number of pages	11
Journal	Superlattices and Microstructures
Volume	30
Issue number	6
DOIs	https://doi.org/10.1006/spmi.2002.1021
State	Published - 2001

Keywords

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

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1006/spmi.2002.1021

Cite this

@article{e3c92ce0f6644459a30fc6828c977995,

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

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.",

keywords = "2DEG, AlSb, Asymmetric, GaSb, Heterostructure, InAs, Rashba, Spin splitting, Two-dimensional electron gas",

author = "X. Cartoix{\`a} and Ting, {D. Z.Y.} and Daniel, {E. S.} and McGill, {T. C.}",

note = "Funding Information: Acknowledgements—We would like to acknowledge D L Smith for helpful discussions and G S Picus for his careful reading of the manuscript. This work has been supported by ONR contracts Nos N00014-99-1-1006 and N00014-98-1-0492. 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.",

year = "2001",

doi = "10.1006/spmi.2002.1021",

language = "English (US)",

volume = "30",

pages = "309--319",

journal = "Superlattices and Microstructures",

issn = "0749-6036",

publisher = "Academic Press Inc.",

number = "6",

}

TY - JOUR

T1 - Theoretical investigations of spin splittings in asymmetric AlSb/InAs/GaSb heterostructures and the possibility of electric field induced magnetization

AU - Cartoixà, X.

AU - Ting, D. Z.Y.

AU - Daniel, E. S.

AU - McGill, T. C.

N1 - Funding Information: Acknowledgements—We would like to acknowledge D L Smith for helpful discussions and G S Picus for his careful reading of the manuscript. This work has been supported by ONR contracts Nos N00014-99-1-1006 and N00014-98-1-0492. 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.

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

KW - 2DEG

KW - AlSb

KW - Asymmetric

KW - GaSb

KW - Heterostructure

KW - InAs

KW - Rashba

KW - Spin splitting

KW - Two-dimensional electron gas

UR - http://www.scopus.com/inward/record.url?scp=0035743990&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035743990&partnerID=8YFLogxK

U2 - 10.1006/spmi.2002.1021

DO - 10.1006/spmi.2002.1021

M3 - Article

AN - SCOPUS:0035743990

SN - 0749-6036

VL - 30

SP - 309

EP - 319

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 6

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this