Magnetoresistance in a high-mobility two-dimensional electron gas
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Date
2011
Volume
83
Issue
11
Journal
Physical Review B 83 (2011), Nr. 11
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Publisher
College Park, MD : American Physical Society
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Abstract
In a high-mobility two-dimensional electron gas (2DEG) in a GaAs/Al 0.3Ga0.7As 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 when increasing the temperature. An additional density-dependent factor is introduced to be able to fit the parabolic magnetoresistance to the electron-electron interaction correction. © 2011 American Physical Society.
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