TITLE

Magnetoresistance in high-density two-dimensional electron gas confined in InAlAs/InGaAs quantum well

AUTHOR(S)
Gao, K. H.; Zhou, W. Z.; Zhou, Y. M.; Yu, G.; Lin, T.; Guo, S. L.; Chu, J. H.; Dai, N.; Gu, Y.; Zhang, Y. G.; Austing, D. G.
PUB. DATE
April 2009
SOURCE
Applied Physics Letters;4/13/2009, Vol. 94 Issue 15, p152107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We study the magnetoresistance of a high-density two-dimensional electron gas confined in an InAlAs/InGaAs quantum well and observe a parabolic negative magnetoresistivity at moderate field. This negative magnetoresistivity is induced by electron-electron interactions. The interaction correction to the Drude conductance is extracted from the negative magnetoresistivity. However, due to inhomogeneity in the electron density, there is a contribution of positive magnetoresistivity, which induces the larger extracted correction than anticipated.
ACCESSION #
37831815

 

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