Effect of an electrostatic field on the interference of electron waves in a quasiballistic interferometer
Bykov A. A. , Kvon Z. D., Litvin L. V., Moshchenko S. P., Nastaushev Yu. V.
The mesoscopic microwave emf has been used to study the effect of an electrostatic field on coherent processes in submicron GaAs/AlGaAs rings. In contrast with magnetic-field fluctuations, in which case one observes an aperiodic component and hie oscillations, the dependence of the emf on the gate voltage has only a random component. The reason is that a random scattering potential plays a dominant role in the coherent processes in a quasiballistic interferometer, and the correlation energies of the aperiodic mesoscopic fluctuations of the Aharonov-Bohm oscillations are comparable in magnitude. © 1994 American Institute of Physics.