Transport properties of AlGaAs/GaAs parabolic quantum wells

K. H. Gao; G. Yu; Y. M. Zhou; W. Z. Zhou; T. Lin; J. H. Chu; N. Dai; A. J. Springthorpe; D. G. Austing

doi:10.1063/1.3063690

Transport properties of AlGaAs/GaAs parabolic quantum wells

K. H. Gao, G. Yu, Y. M. Zhou, W. Z. Zhou, T. Lin, J. H. Chu, N. Dai, A. J. Springthorpe, D. G. Austing

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24 Scopus citations

Abstract

We report on the magnetotransport properties of 100 nm wide parabolic quantum wells and observe an enhancement of the Hall resistance in one sample but not the other. This phenomenon is likely related to the effective thickness of the electronic slab. We also observe a parabolic negative magnetoresistance originating from electron-electron interactions when only one subband is occupied in one of the samples. The interaction correction to the Drude conductivity is extracted using two methods. We find that the extracted interaction correction increases with increasing tilted angle, for which two possible explanations are given.

Original language	English
Article number	013712
Journal	Journal of Applied Physics
Volume	105
Issue number	1
DOIs	https://doi.org/10.1063/1.3063690
State	Published - 2009
Externally published	Yes

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title = "Transport properties of AlGaAs/GaAs parabolic quantum wells",

abstract = "We report on the magnetotransport properties of 100 nm wide parabolic quantum wells and observe an enhancement of the Hall resistance in one sample but not the other. This phenomenon is likely related to the effective thickness of the electronic slab. We also observe a parabolic negative magnetoresistance originating from electron-electron interactions when only one subband is occupied in one of the samples. The interaction correction to the Drude conductivity is extracted using two methods. We find that the extracted interaction correction increases with increasing tilted angle, for which two possible explanations are given.",

author = "Gao, \{K. H.\} and G. Yu and Zhou, \{Y. M.\} and Zhou, \{W. Z.\} and T. Lin and Chu, \{J. H.\} and N. Dai and Springthorpe, \{A. J.\} and Austing, \{D. G.\}",

year = "2009",

doi = "10.1063/1.3063690",

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volume = "105",

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T1 - Transport properties of AlGaAs/GaAs parabolic quantum wells

AU - Gao, K. H.

AU - Yu, G.

AU - Zhou, Y. M.

AU - Zhou, W. Z.

AU - Lin, T.

AU - Chu, J. H.

AU - Dai, N.

AU - Springthorpe, A. J.

AU - Austing, D. G.

PY - 2009

Y1 - 2009

N2 - We report on the magnetotransport properties of 100 nm wide parabolic quantum wells and observe an enhancement of the Hall resistance in one sample but not the other. This phenomenon is likely related to the effective thickness of the electronic slab. We also observe a parabolic negative magnetoresistance originating from electron-electron interactions when only one subband is occupied in one of the samples. The interaction correction to the Drude conductivity is extracted using two methods. We find that the extracted interaction correction increases with increasing tilted angle, for which two possible explanations are given.

AB - We report on the magnetotransport properties of 100 nm wide parabolic quantum wells and observe an enhancement of the Hall resistance in one sample but not the other. This phenomenon is likely related to the effective thickness of the electronic slab. We also observe a parabolic negative magnetoresistance originating from electron-electron interactions when only one subband is occupied in one of the samples. The interaction correction to the Drude conductivity is extracted using two methods. We find that the extracted interaction correction increases with increasing tilted angle, for which two possible explanations are given.

UR - https://www.scopus.com/pages/publications/67649800806

U2 - 10.1063/1.3063690

DO - 10.1063/1.3063690

M3 - 文章

AN - SCOPUS:67649800806

SN - 0021-8979

VL - 105

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 1

M1 - 013712

ER -

Transport properties of AlGaAs/GaAs parabolic quantum wells

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