Zhang, YimingMcClure, Douglas TempletonLevenson-Falk, Eli M.Marcus, CPfeiffer, Loren N.West, Kenneth W.2011-08-152009Zhang, Yiming, Douglas T. McClure, Eli M. Levenson-Falk, Charles Masamed Marcus, Loren N. Pfeiffer, and Kenneth W. West. 2009. Distinct signatures for Coulomb blockade and Aharonov-Bohm interference in electronic Fabry-Perot interferometers. Physical Review B 79(241304).1098-0121http://nrs.harvard.edu/urn-3:HUL.InstRepos:5110754Two 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 \(2.0\mu m^2\) device are understood to arise from a Coulomb blockade mechanism and those observed in an \(18\mu m^2\) 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.en-USAharonov-Bohm effectCoulomb blockadeFabry-Perot interferometersmagnetoresistanceoscillationsquantum Hall effectJournal Article2011-08-1510.1103/PhysRevB.79.241304