Removal of spin degeneracy in SiGe based nanostructures

S. D. Ganichev; U. Rössler; W. Prettl; E. L. Ivchenko; V. V. Bel'kov; R. Neumann; K. Brunner; G. Abstreiter

doi:10.1117/12.513609

Removal of spin degeneracy in SiGe based nanostructures

S. D. Ganichev, U. Rössler, W. Prettl, E. L. Ivchenko, V. V. Bel'kov, R. Neumann, K. Brunner, G. Abstreiter

Research output: Contribution to journal › Conference article › peer-review

Abstract

The photogalvanic effects, which require a system lacking inversion symmetry, become possible in SiGe based quantum well (QW) structures due to their built-in asymmetry. We report on the removal of spin degeneracy in the k-space of SiGe nanostructures. This is concluded from the observations of the circular photogalvanic effect induced by infrared radiation in asymmetric p-type QWs. We discuss possible mechanisms that give rise to spin-splitting of the electronic subband states.

Original language	English
Pages (from-to)	169-171
Number of pages	3
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5023
DOIs	https://doi.org/10.1117/12.513609
State	Published - 2003
Externally published	Yes
Event	10th International Symposium on Nanostructures: Physics and Technology - St. Petersburg, Russian Federation Duration: 17 Jun 2002 → 21 Jun 2002

Keywords

Built-in asymmetry
Photogalvanic effects
Spin-splitting

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10.1117/12.513609

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title = "Removal of spin degeneracy in SiGe based nanostructures",

abstract = "The photogalvanic effects, which require a system lacking inversion symmetry, become possible in SiGe based quantum well (QW) structures due to their built-in asymmetry. We report on the removal of spin degeneracy in the k-space of SiGe nanostructures. This is concluded from the observations of the circular photogalvanic effect induced by infrared radiation in asymmetric p-type QWs. We discuss possible mechanisms that give rise to spin-splitting of the electronic subband states.",

keywords = "Built-in asymmetry, Photogalvanic effects, Spin-splitting",

author = "Ganichev, {S. D.} and U. R{\"o}ssler and W. Prettl and Ivchenko, {E. L.} and Bel'kov, {V. V.} and R. Neumann and K. Brunner and G. Abstreiter",

year = "2003",

doi = "10.1117/12.513609",

language = "English",

volume = "5023",

pages = "169--171",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "10th International Symposium on Nanostructures: Physics and Technology ; Conference date: 17-06-2002 Through 21-06-2002",

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TY - JOUR

T1 - Removal of spin degeneracy in SiGe based nanostructures

AU - Ganichev, S. D.

AU - Rössler, U.

AU - Prettl, W.

AU - Ivchenko, E. L.

AU - Bel'kov, V. V.

AU - Neumann, R.

AU - Brunner, K.

AU - Abstreiter, G.

PY - 2003

Y1 - 2003

N2 - The photogalvanic effects, which require a system lacking inversion symmetry, become possible in SiGe based quantum well (QW) structures due to their built-in asymmetry. We report on the removal of spin degeneracy in the k-space of SiGe nanostructures. This is concluded from the observations of the circular photogalvanic effect induced by infrared radiation in asymmetric p-type QWs. We discuss possible mechanisms that give rise to spin-splitting of the electronic subband states.

AB - The photogalvanic effects, which require a system lacking inversion symmetry, become possible in SiGe based quantum well (QW) structures due to their built-in asymmetry. We report on the removal of spin degeneracy in the k-space of SiGe nanostructures. This is concluded from the observations of the circular photogalvanic effect induced by infrared radiation in asymmetric p-type QWs. We discuss possible mechanisms that give rise to spin-splitting of the electronic subband states.

KW - Built-in asymmetry

KW - Photogalvanic effects

KW - Spin-splitting

UR - http://www.scopus.com/inward/record.url?scp=0042878607&partnerID=8YFLogxK

U2 - 10.1117/12.513609

DO - 10.1117/12.513609

M3 - Conference article

AN - SCOPUS:0042878607

SN - 0277-786X

VL - 5023

SP - 169

EP - 171

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - 10th International Symposium on Nanostructures: Physics and Technology

Y2 - 17 June 2002 through 21 June 2002

ER -

Removal of spin degeneracy in SiGe based nanostructures

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Keywords

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