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Robust single-parameter quantized charge pumping
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DOI：10.1063/1.2928231.png)
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Abstract
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This paper investigates a scheme for quantized charge pumping based on single-parameter modulation. The device was realized in an AlGaAs-GaAs gated nanowire. We find a remarkable robustness of the quantized regime against variations in the driving signal, which increases with applied rf power. This feature, together with its simple configuration, makes this device a potential module for a scalable source of quantized current. (C) 2008 American Institute of Physics.
Keywords:
ELECTRON PUMP
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