Interacting GaAs bilayer hole systems with layer density imbalance

E. Tutuc; S. Melinte; E. P. De Poortere; R. Pillarisetty; M. Shayegan

doi:10.1016/j.physe.2003.11.209

Interacting GaAs bilayer hole systems with layer density imbalance

E. Tutuc, S. Melinte, E. P. De Poortere, R. Pillarisetty, M. Shayegan

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

Abstract

We study interacting GaAs hole bilayers in the limit of zero interlayer tunneling. When the layers have equal density, we observe a phase coherent bilayer quantum Hall state (QHS) at total filling factor ν=1, flanked by a reentrant insulating phase at nearby fillings which suggests the formation of a pinned, bilayer Wigner crystal. As we transfer charge from one layer to another, the phase coherent QHS becomes stronger, while the insulating phase disappears, suggesting that its stability requires the commensurability of the two layers.

Original language	English (US)
Pages (from-to)	32-35
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	22
Issue number	1-3
DOIs	https://doi.org/10.1016/j.physe.2003.11.209
State	Published - Apr 2004
Event	15th International Conference on ELectronic Propreties - Nara, Japan Duration: Jul 14 2003 → Jul 18 2003

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Atomic and Molecular Physics, and Optics

Keywords

Bilayer
Two-dimensional
Wigner crystal

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10.1016/j.physe.2003.11.209

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title = "Interacting GaAs bilayer hole systems with layer density imbalance",

abstract = "We study interacting GaAs hole bilayers in the limit of zero interlayer tunneling. When the layers have equal density, we observe a phase coherent bilayer quantum Hall state (QHS) at total filling factor ν=1, flanked by a reentrant insulating phase at nearby fillings which suggests the formation of a pinned, bilayer Wigner crystal. As we transfer charge from one layer to another, the phase coherent QHS becomes stronger, while the insulating phase disappears, suggesting that its stability requires the commensurability of the two layers.",

keywords = "Bilayer, Two-dimensional, Wigner crystal",

author = "E. Tutuc and S. Melinte and {De Poortere}, {E. P.} and R. Pillarisetty and M. Shayegan",

year = "2004",

month = apr,

doi = "10.1016/j.physe.2003.11.209",

language = "English (US)",

volume = "22",

pages = "32--35",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier",

number = "1-3",

note = "15th International Conference on ELectronic Propreties ; Conference date: 14-07-2003 Through 18-07-2003",

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TY - JOUR

T1 - Interacting GaAs bilayer hole systems with layer density imbalance

AU - Tutuc, E.

AU - Melinte, S.

AU - De Poortere, E. P.

AU - Pillarisetty, R.

AU - Shayegan, M.

PY - 2004/4

Y1 - 2004/4

N2 - We study interacting GaAs hole bilayers in the limit of zero interlayer tunneling. When the layers have equal density, we observe a phase coherent bilayer quantum Hall state (QHS) at total filling factor ν=1, flanked by a reentrant insulating phase at nearby fillings which suggests the formation of a pinned, bilayer Wigner crystal. As we transfer charge from one layer to another, the phase coherent QHS becomes stronger, while the insulating phase disappears, suggesting that its stability requires the commensurability of the two layers.

AB - We study interacting GaAs hole bilayers in the limit of zero interlayer tunneling. When the layers have equal density, we observe a phase coherent bilayer quantum Hall state (QHS) at total filling factor ν=1, flanked by a reentrant insulating phase at nearby fillings which suggests the formation of a pinned, bilayer Wigner crystal. As we transfer charge from one layer to another, the phase coherent QHS becomes stronger, while the insulating phase disappears, suggesting that its stability requires the commensurability of the two layers.

KW - Bilayer

KW - Two-dimensional

KW - Wigner crystal

UR - http://www.scopus.com/inward/record.url?scp=1842684890&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1842684890&partnerID=8YFLogxK

U2 - 10.1016/j.physe.2003.11.209

DO - 10.1016/j.physe.2003.11.209

M3 - Conference article

AN - SCOPUS:1842684890

SN - 1386-9477

VL - 22

SP - 32

EP - 35

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-3

T2 - 15th International Conference on ELectronic Propreties

Y2 - 14 July 2003 through 18 July 2003

ER -

Interacting GaAs bilayer hole systems with layer density imbalance

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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