Magnetoexciton luminescence at 1/3 Landau filling as a function of electron-hole separation

F. Plentz; D. Heiman; A. Pinczuk; L. N. Pfeiffer; K. W. West

doi:10.1016/0039-6028(96)00323-8

Magnetoexciton luminescence at 1/3 Landau filling as a function of electron-hole separation

F. Plentz
, D. Heiman
, A. Pinczuk
, L. N. Pfeiffer
, K. W. West

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

4 Scopus citations

Abstract

The luminescence spectrum of magnetoexcitons in a 2D electron system in GaAs/AlGaAs is studied as a function of electron-hole separation, h, which is varied by applying front- and back-gate voltages. For Landau filling ν < 1 the energy splitting between the doublet components decreases for increasing h. For ν = 1/3 two regimes are observed - at small h the upper component has a positive-going cusp, while for larger h a positive-going step is observed. This may be related to charge fractionalization associated with anion excitons consisting of three quasi-electrons and a valence band hole.

Original language	English (US)
Pages (from-to)	30-33
Number of pages	4
Journal	Surface Science
Volume	361-362
DOIs	https://doi.org/10.1016/0039-6028(96)00323-8
State	Published - Jul 20 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Keywords

Contacts
Field effect
Gallium arsenide
Hall effect
Luminescence
Many body and quasi-particle theories
Photoluminescence
Quantum wells

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10.1016/0039-6028(96)00323-8

Cite this

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title = "Magnetoexciton luminescence at 1/3 Landau filling as a function of electron-hole separation",

abstract = "The luminescence spectrum of magnetoexcitons in a 2D electron system in GaAs/AlGaAs is studied as a function of electron-hole separation, h, which is varied by applying front- and back-gate voltages. For Landau filling ν < 1 the energy splitting between the doublet components decreases for increasing h. For ν = 1/3 two regimes are observed - at small h the upper component has a positive-going cusp, while for larger h a positive-going step is observed. This may be related to charge fractionalization associated with anion excitons consisting of three quasi-electrons and a valence band hole.",

keywords = "Contacts, Field effect, Gallium arsenide, Hall effect, Luminescence, Many body and quasi-particle theories, Photoluminescence, Quantum wells",

author = "F. Plentz and D. Heiman and A. Pinczuk and Pfeiffer, \{L. N.\} and West, \{K. W.\}",

year = "1996",

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doi = "10.1016/0039-6028(96)00323-8",

language = "English (US)",

volume = "361-362",

pages = "30--33",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Magnetoexciton luminescence at 1/3 Landau filling as a function of electron-hole separation

AU - Plentz, F.

AU - Heiman, D.

AU - Pinczuk, A.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 1996/7/20

Y1 - 1996/7/20

N2 - The luminescence spectrum of magnetoexcitons in a 2D electron system in GaAs/AlGaAs is studied as a function of electron-hole separation, h, which is varied by applying front- and back-gate voltages. For Landau filling ν < 1 the energy splitting between the doublet components decreases for increasing h. For ν = 1/3 two regimes are observed - at small h the upper component has a positive-going cusp, while for larger h a positive-going step is observed. This may be related to charge fractionalization associated with anion excitons consisting of three quasi-electrons and a valence band hole.

AB - The luminescence spectrum of magnetoexcitons in a 2D electron system in GaAs/AlGaAs is studied as a function of electron-hole separation, h, which is varied by applying front- and back-gate voltages. For Landau filling ν < 1 the energy splitting between the doublet components decreases for increasing h. For ν = 1/3 two regimes are observed - at small h the upper component has a positive-going cusp, while for larger h a positive-going step is observed. This may be related to charge fractionalization associated with anion excitons consisting of three quasi-electrons and a valence band hole.

KW - Contacts

KW - Field effect

KW - Gallium arsenide

KW - Hall effect

KW - Luminescence

KW - Many body and quasi-particle theories

KW - Photoluminescence

KW - Quantum wells

UR - https://www.scopus.com/pages/publications/0030196961

UR - https://www.scopus.com/pages/publications/0030196961#tab=citedBy

U2 - 10.1016/0039-6028(96)00323-8

DO - 10.1016/0039-6028(96)00323-8

M3 - Article

AN - SCOPUS:0030196961

SN - 0039-6028

VL - 361-362

SP - 30

EP - 33

JO - Surface Science

JF - Surface Science

ER -

Magnetoexciton luminescence at 1/3 Landau filling as a function of electron-hole separation

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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