2000/06/30 by J. Ebbecke, G. Bastian, M. Blöcker +2 · 1 citation
Physics and Astronomy · #Acoustic wave #Current (fluid) #Electric current #Mechanical and Optical Resonators #Metrology #Quantum and electron transport phenomena #Realization (probability) #Surface (topology) #Surface acoustic wave #Topological Materials and Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1063/1.1319190
3pages, 4eps-figures
arxiv created 2000/06/30 · openalex publication_date 2000/10/16 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present the experimental realization of different approaches to increase the amount of quantized current which is driven by surface acoustic waves through split-gate structures in a two-dimensional electron gas. Samples with driving frequencies of up to 4.7 GHz have been fabricated without a deterioration of the precision of the current steps, and a parallelization of two channels with correspondingly doubled current values have been achieved. We discuss theoretical and technological limitations of these approaches for metrological applications as well as for quantum logics.