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Enhanced current quantization in high frequency electron pumps in a perpendicular magnetic field

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 نشر من قبل Samuel Wright
 تاريخ النشر 2008
  مجال البحث فيزياء
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We present experimental results of high frequency quantized charge pumping through a quantum dot formed by the electric field arising from applied voltages in a GaAs/AlGaAs system in the presence of a perpendicular magnetic field B. Clear changes are observed in the quantized current plateaus as a function of applied magnetic field. We report on the robustness in the length of the quantized plateaus and improvements in the quantization as a result of the applied B field.

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