Robust single-parameter quantized charge pumping

Details Robust single-parameter quantized charge pumping Robust single-parameter quantized charge pumping

2008-03-06

arxiv.org/abs/0803.0869v1

Appl. Phys. Lett. 92, 192106 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Submitted to Appl. Phys. Lett

Scientific paper

10.1063/1.2928231

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.

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