Self-Organized Criticality and the Barkhausen Effect
Abstract
The Barkhausen effect was studied in an amorphous alloy. The data exhibit all the attributes of self-ordered critical behavior enumerated by Bak, Tang, and Wiesenfeld: The distribution of lifetimes and areas of discrete Barkhausen pulses follow powerlaw distributions, which have been modified to account for finite-size effects as suggested by Kadanoff, Nagel, Wu, and Zhou. The directly measured power spectral density has the form of flicker noise, with exponent and form consistent with those to be expected from the measured distribution of pulse areas and lifetimes in the light of the work of Jensen, Christensen, and Fogedby. Barkhausen Effect, Ferromagnetic Amorphous Metal, Self-Organized Criticality, Power-Law Distribution.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1992
- Accession Number
- ADA252761
Entities
People
- Lawrence V. Meisel
- Paul J. Cote
Organizations
- United States Army Armament Research, Development and Engineering Center