2008/12/31 by Yiming Zhang, Douglas McClure, D. T. McClure +6 · 6 citations
Engineering · Physics and Astronomy · #Astronomical interferometer #Condensed matter physics #Coulomb #Coulomb blockade #Electrical engineering #Electron #Fabry–Pérot interferometer #Interference (communication) #Interferometry #Magnetic field #Physics #Quantum and electron transport phenomena #Quantum mechanics #Semiconductor Quantum Structures and Devices #Semiconductor materials and devices #Transistor #Voltage #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.79.241304
published as Phys. Rev. B (RC) 79, 241304 (2009) · related papers at http://marcuslab.harvard.edu
arxiv created 2008/12/31 · openalex publication_date 2009/06/03 · arxiv updated 2012/11/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Two distinct types of magnetoresistance oscillations are observed in two electronic Fabry-Perot interferometers of different sizes in the integer quantum Hall regime. Measuring these oscillations as a function of magnetic field and gate voltages, we describe three signatures that distinguish the two types. The oscillations observed in a 2.0 \ensuremathμm2 device are understood to arise from a Coulomb blockade mechanism and those observed in an 18 \ensuremathμm2 device from an Aharonov-Bohm mechanism. This work clarifies, provides ways to distinguish, and demonstrates control over these distinct mechanisms of oscillations seen in electronic Fabry-Perot interferometers.