Phys. Rev. Lett. 54, 1718–1721 (1985)Flicker (1/f) Noise in Percolation Networks: A New Hierarchy of ExponentsReceived 10 December 1984; published in the issue dated 15 April 1985 New results for the magnitude of flicker noise, considered as resistance fluctuations, in random resistor networks are reported. Near the percolation threshold pc, the magnitude of the relative noise is shown to diverge as (p-pc)-κ. The new exponent κ is calculated by various methods: Monte Carlo simulations, effective-medium theory, and position-space renormalization group. Exponents pertaining to higher-order cumulants of the resistance fluctuations are also calculated. The possible implications of our results for ongoing experiments on metal-insulator mixtures and cermets are also discussed. © 1985 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.54.1718
DOI:
10.1103/PhysRevLett.54.1718
PACS:
72.70.+m, 05.40.+j
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.