Frictional Drag in Dilute Bilayer 2D Hole Systems

E. H. Hwang; S. Das Sarma; V. Braude; Ady Stern

doi:10.1103/PhysRevLett.90.086801

Frictional Drag in Dilute Bilayer 2D Hole Systems

E. H. Hwang
, S. Das Sarma
, V. Braude
, Ady Stern

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

Abstract

We develop a theory for frictional drag between two 2D hole layers in a dilute bilayer GaAs hole system, including effects of hole-hole and hole-phonon interactions. Our calculations suggest significant enhancement of hole drag transresistivity over the corresponding electron drag results. This enhancement originates from the exchange induced renormalization of the single-layer compressibility and the strong dependence of single-layer conductivity on density. We also address the effect of hole-phonon interaction on the drag temperature dependence. Our calculated results are in reasonable quantitative agreement with recent experimental observations.

Original language	English
Pages (from-to)	4
Number of pages	1
Journal	Physical Review Letters
Volume	90
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.90.086801
State	Published - 2003
Externally published	Yes

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10.1103/PhysRevLett.90.086801

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title = "Frictional Drag in Dilute Bilayer 2D Hole Systems",

abstract = "We develop a theory for frictional drag between two 2D hole layers in a dilute bilayer GaAs hole system, including effects of hole-hole and hole-phonon interactions. Our calculations suggest significant enhancement of hole drag transresistivity over the corresponding electron drag results. This enhancement originates from the exchange induced renormalization of the single-layer compressibility and the strong dependence of single-layer conductivity on density. We also address the effect of hole-phonon interaction on the drag temperature dependence. Our calculated results are in reasonable quantitative agreement with recent experimental observations.",

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year = "2003",

doi = "10.1103/PhysRevLett.90.086801",

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journal = "Physical Review Letters",

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AU - Hwang, E. H.

AU - Das Sarma, S.

AU - Braude, V.

AU - Stern, Ady

PY - 2003

Y1 - 2003

N2 - We develop a theory for frictional drag between two 2D hole layers in a dilute bilayer GaAs hole system, including effects of hole-hole and hole-phonon interactions. Our calculations suggest significant enhancement of hole drag transresistivity over the corresponding electron drag results. This enhancement originates from the exchange induced renormalization of the single-layer compressibility and the strong dependence of single-layer conductivity on density. We also address the effect of hole-phonon interaction on the drag temperature dependence. Our calculated results are in reasonable quantitative agreement with recent experimental observations.

AB - We develop a theory for frictional drag between two 2D hole layers in a dilute bilayer GaAs hole system, including effects of hole-hole and hole-phonon interactions. Our calculations suggest significant enhancement of hole drag transresistivity over the corresponding electron drag results. This enhancement originates from the exchange induced renormalization of the single-layer compressibility and the strong dependence of single-layer conductivity on density. We also address the effect of hole-phonon interaction on the drag temperature dependence. Our calculated results are in reasonable quantitative agreement with recent experimental observations.

UR - https://www.scopus.com/pages/publications/85038340300

U2 - 10.1103/PhysRevLett.90.086801

DO - 10.1103/PhysRevLett.90.086801

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SN - 0031-9007

VL - 90

SP - 4

JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Frictional Drag in Dilute Bilayer 2D Hole Systems

Abstract

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