F.A. Buot, R. Montecillo, M.D. Nacar, R.E.S. Otadoy
There is a formal correspondence or duality in the analytical theories of self-oscillation in resonant tunneling nanostructures (RTN's) with conventional (type-I) and with staggered (type-II) alignments of the heterostructure energy-band gaps. Two entirely difflerent physical models for type-I and type-II RTN's were introduced and described by a unifying set of coupled nonlinear-rate equations. These coupled equations were solved for the limit cycle solution. For type-I RTN, the limit cycle predictions in the plateau agrees with experiments and simulations of AlGaAs/GaAs type I RTN. For type II RTN, the limit-cycle oscillation time-averaged results agree with the measured current-voltage (I-V) characteristic of AlGaSb/InAs/AlGaSb type-II RTN. © 2017 Author(s).
Nanoelectronics Group, Theoretical and Computational Sciences and Engineering Center, Department of Physics, University of San Carlos, Talamban, Cebu City, 6000, Philippines; C and LB Research Institute, Carmen-Cebu, 6005, Philippines
