Crackling noise in disordered materials

Ekhard K.H. Salje, Karin A. Dahmen

Research output: Contribution to journalArticlepeer-review

Abstract

Recent experimental and theoretical progress on the study of crackling noise in the plastic deformation of crystals, ferroelastics, and porous materials is reviewed. We specifically point out opportunities and potential pitfalls in this approach to the study of the nonequilibrium dynamics of disordered materials. Direct optical observation of domain boundary movement under stress and experimental results from acoustic emission and heat-flux measurements lead to power-law scaling of the jerk distribution with energy exponents between 1.3 and 2.3. The collapse of porous materials under stress leads to exceptionally large intervals of power-law scaling (seven decades). Applications in geology and materials sciences are discussed.

Original languageEnglish (US)
Pages (from-to)233-254
Number of pages22
JournalAnnual Review of Condensed Matter Physics
Volume5
Issue number1
DOIs
StatePublished - Mar 2014

Keywords

  • avalanches
  • Barkhausen noise
  • crackling noise
  • critical point
  • ferroelastics
  • nonequilibrium
  • plasticity
  • porous materials
  • scaling

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)

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