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Acompanying dataset for 'Switching between attractive and repulsive Coulomb-interaction-mediated drag in an ambipolar GaAs/AlGaAs bilayer device'


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Type

Dataset

Change log

Authors

Zheng, B. 
Croxall, A. F. 
Das Gupta, K. 
Sfigakis, F. 

Description

Coulomb drag resistivity as a function of temperature and carrier density in a GaAs/AlGaAs ambipolar double-quantum-well structure, configured as both and electron-hole and a hole-hole bilayer. These measurements were carried out at the Cavendish Laboratory, University of Cambridge, by the authors, in the period 2011 to 2013. Dataset also includes results of numerical modelling of the drag resistivity using the Boltzmann transport formalism and both the random phase and Hubbard approximations for screening. Further details of the research methods can be found in the associated publication.


This research data supports 'Switching between attractive and repulsive Coulomb-interaction-mediated drag in an ambipolar GaAs/AlGaAs bilayer device', which is published in the 'Applied Physics Letters' journal.

Version

Software / Usage instructions

xlsx This can be opened using Microsoft Excel and free spreadsheet software such as Open Office, Libra Office and Google Sheets.

Keywords

Coulomb drag, GaAs/AlGaAs, 2D bilayer

Publisher

University of Cambridge
Sponsorship
This work was supported by the EPSRC [grant numbers EP/J003417/1 and EP/H017720/1], Trinity College, The University of Cambridge and Toshiba of Europe
Relationships
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