1 research outputs found
Hysteresis and Noise in Stripe and Clump Forming Systems
We use simulations to examine hysteresis and noise in a model system that
produces heterogeneous orderings including stripe and clump phases. In the
presence of a disordered substrate, these heterogeneous phases exhibit
1/f noise and hysteresis in transport. The noise fluctuations are
maximal in the heterogeneous phases, while in the uniform phases the hysteresis
vanishes and both and the noise power decrease. We compare our results
to recent experiments exhibiting noise and hysteresis in high-temperature
superconductors where charge heterogeneities may occur.Comment: 4 pages, 5 postscript figure