Frictional drag between coupled 2D hole gases in GaAs/AlGaAs heterostructures

C. Jörger; Shun-Jen Cheng; W. Dietsche; R. Gerhardts; P. Specht; K. Eberl; K. Von Klitzing

doi:10.1016/S1386-9477(99)00125-3

Frictional drag between coupled 2D hole gases in GaAs/AlGaAs heterostructures

C. Jörger, Shun-Jen Cheng, W. Dietsche, R. Gerhardts, P. Specht, K. Eberl, K. Von Klitzing

電子物理學系

研究成果: Conference article › 同行評審

11 引文斯高帕斯（Scopus）

摘要

We report on the first measurements of the drag effect between coupled 2D-hole gases. We investigate the coupling by changing the temperature, the carrier densities in the quantum wells and the widths of the barriers between the gases. From the data we are able to attribute the frictional drag to phonon coupling because the non-parabolicity allows the separate tuning of the Fermi wave vector and of the Fermi velocity allowing to distinguish between phonon- and plasmon-dominated coupling.

原文	English
頁（從 - 到）	598-601
頁數	4
期刊	Physica E: Low-Dimensional Systems and Nanostructures
卷	6
發行號	1
DOIs	https://doi.org/10.1016/S1386-9477(99)00125-3
出版狀態	Published - 1 1月 2000
事件	13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can 持續時間: 1 8月 1999 → 6 8月 1999

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10.1016/S1386-9477(99)00125-3

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T1 - Frictional drag between coupled 2D hole gases in GaAs/AlGaAs heterostructures

AU - Jörger, C.

AU - Cheng, Shun-Jen

AU - Dietsche, W.

AU - Gerhardts, R.

AU - Specht, P.

AU - Eberl, K.

AU - Von Klitzing, K.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - We report on the first measurements of the drag effect between coupled 2D-hole gases. We investigate the coupling by changing the temperature, the carrier densities in the quantum wells and the widths of the barriers between the gases. From the data we are able to attribute the frictional drag to phonon coupling because the non-parabolicity allows the separate tuning of the Fermi wave vector and of the Fermi velocity allowing to distinguish between phonon- and plasmon-dominated coupling.

AB - We report on the first measurements of the drag effect between coupled 2D-hole gases. We investigate the coupling by changing the temperature, the carrier densities in the quantum wells and the widths of the barriers between the gases. From the data we are able to attribute the frictional drag to phonon coupling because the non-parabolicity allows the separate tuning of the Fermi wave vector and of the Fermi velocity allowing to distinguish between phonon- and plasmon-dominated coupling.

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U2 - 10.1016/S1386-9477(99)00125-3

DO - 10.1016/S1386-9477(99)00125-3

M3 - Conference article

AN - SCOPUS:0034138722

SN - 1386-9477

VL - 6

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JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1

T2 - 13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13)

Y2 - 1 August 1999 through 6 August 1999

ER -

Frictional drag between coupled 2D hole gases in GaAs/AlGaAs heterostructures

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