Hysteresis and Noise in Stripe and Clump Forming Systems

Details Hysteresis and Noise in Stripe and Clump Forming Systems Hysteresis and Noise in Stripe and Clump Forming Systems

2005-03-11

arxiv.org/abs/cond-mat/0503261v1

Europhys. Lett. 72, 444 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 postscript figures

Scientific paper

10.1209/epl/i2005-10250-8

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$^\alpha$ noise and hysteresis in transport. The noise fluctuations are maximal in the heterogeneous phases, while in the uniform phases the hysteresis vanishes and both $\alpha$ 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.

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