Semiconductor Quantized Voltage Source

2011/03/09 by F. Hohls, Frank Hohls, A. Welker +16
Engineering · Physics and Astronomy · #Analog and Mixed-Signal Circuit Design #Atomic physics #Closure (psychology) #Electron #Excitation #Mechanical and Optical Resonators #Metrology #Optoelectronics #Physics #Planck constant #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Semiconductor #Voltage #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevlett.109.056802

published as Phys. Rev. Lett. 109, 056802 (2012) · 15 pages, 3 figures

arxiv created 2011/03/09 · openalex publication_date 2012/07/31 · arxiv updated 2012/09/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We realize and investigate an all-semiconductor quantized voltage source which generates quantized output voltages V(out) = f(h/e) linked only to two fundamental constants, the electron's charge e and Planck's constant h, and to an applied excitation frequency f. The device is based on an integrated quantized circuit of a single-electron pump operated at pumping frequency f and a quantum Hall device monolithically integrated in series. Robust output voltages up to several μV are generated, which are expected to be scalable by orders of magnitude using present technology. The device might open a new route towards the closure of the quantum metrology triangle.

Citations

• Single-parameter quantized charge pumping in high magnetic fields
• Single-parameter nonadiabatic quantized charge pumping
• Robust single-parameter quantized charge pumping
• Experimental observation of the quantum Hall effect and Berry's phase in graphene
• Towards a quantum resistance standard based on epitaxial graphene
• Possible new effects in superconductive tunnelling