232 citations · 391 across the 6 of their papers we have counts for
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Single-parameter quantized charge pumping in high magnetic fields
B. Kaestner, Ch. Leicht, V. Kashcheyevs +3
We study single-parameter quantized charge pumping via a semiconductor quantum dot in high magnetic fields. The quantum dot is defined between two top gates in an AlGaAs/GaAs heter…
Robust single-parameter quantized charge pumping
B. Kaestner, V. Kashcheyevs, G. Hein +3
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 r…
Single-parameter non-adiabatic quantized charge pumping
B. Kaestner, V. Kashcheyevs, S. Amakawa +8
Controlled charge pumping in an AlGaAs/GaAs gated nanowire by single-parameter modulation is studied experimentally and theoretically. Transfer of integral multiples of the element…
Low-dimensional light-emitting transistor with tunable recombination zone
B. Kaestner, J. Wunderlich, T. J. B. M. Janssen
We present experimental and numerical studies of a light-emitting transistor comprising two quasi-lateral junctions between a two-dimensional electron and hole gas. These lithograp…
Co-planar spin-polarized light emitting diode
B. Kaestner, J. Wunderlich, Jairo Sinova +1
Studies of spin manipulation in semiconductors has benefited from the possibility to grow these materials in high quality on top of optically active III-V systems. The induced elec…