Giant relaxation oscillations in a very strongly hysteretic superconductive quantum interference device ring-tank circuit system

In this article, we show that the radio frequency (rf) dynamical characteri stics of a very strongly hysteretic superconducting quantum interference de vice (SQUID) ring, coupled to a rf tank circuit resonator, display relaxati on oscillations. We demonstrate that the overall form of these characterist ics, together with the relaxation oscillations, can be modeled accurately b y solving the quasiclassical nonlinear equations of motion for the system. We suggest that in these very strongly hysteretic regimes, SQUID ring-reson ator systems may find application in logic and memory devices. (C) 2001 Ame rican Institute of Physics.