Magnetoresistance in a High Mobility Two-Dimensional Electron Gas

L. Bockhorn; P. Barthold; D. Schuh; W. Wegscheider; R. J. Haug

doi:10.1103/physrevb.83.113301

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arXiv · 1012.0168

Magnetoresistance in a High Mobility Two-Dimensional Electron Gas

L. Bockhorn·P. Barthold·D. Schuh·W. Wegscheider·R. J. Haug

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Abstract

In a high mobility two-dimensional electron gas (2DEG) in a GaAs/AlGaAs quantum well we observe a strong magnetoresistance. In lowering the electron density the magnetoresistance gets more pronounced and reaches values of more than 300%. We observe that the huge magnetoresistance vanishes for increasing the temperature. An additional density dependent factor is introduced to be able to fit the parabolic magnetoresistance to the electron-electron interaction correction.

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L. Bockhorn, P. Barthold, D. Schuh, W. Wegscheider, R. J. Haug. 2010-12-01. Magnetoresistance in a High Mobility Two-Dimensional Electron Gas. https://doi.org/10.1103/physrevb.83.113301

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