Aging Phenomena of Magnetization in a Hierarchical Diffusion Model

Munetaka Sasaki, Koji Nemoto

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The magnetization is introduced to a hierarchical diffusion model and a relation between the response function and the correlation function is derived to evaluate the zero-field-cooled magnetization (ZFCM) and the thermoremanent magnetization (TRM). It is found that if the correlation of distribution of magnetization (CDM) is weak, the behaviors of ZFCM and TRM are governed by the distribution of the barrier energy. The aging is observed in this case. On the other hand, these behaviors are governed by the strength of CDM if it is strong enough, and the aging is not observed.

Original languageEnglish
Pages (from-to)1148-1161
Number of pages14
Journaljournal of the physical society of japan
Issue number4
Publication statusPublished - 1999 Jan 1


  • Aging
  • Hierarchical diffusion model
  • Thermoremanent magnetization
  • Zero-field cooled magnetization

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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