Glauber dynamics in a single-chain magnet: From theory to real systems

Claude Coulon, Rodolphe Clérac, Lollita Lecren, Wolfgang Wernsdorfer, Hitoshi Miyasaka

Research output: Contribution to journalArticle

183 Citations (Scopus)

Abstract

The Glauber dynamics is studied in a single-chain magnet. As predicted, a single relaxation mode of the magnetization is found. Above 2.7 K, the thermally activated relaxation time is mainly governed by the effect of magnetic correlations and the energy barrier experienced by each magnetic unit. This result is in perfect agreement with independent thermodynamical measurements. Below 2.7 K, a crossover towards a relaxation regime is observed that is interpreted as the manifestation of finite-size effects. The temperature dependences of the relaxation time and of the magnetic susceptibility reveal the importance of the boundary conditions.

Original languageEnglish
Article number132408
Pages (from-to)132408-1-132408-4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number13
DOIs
Publication statusPublished - 2004 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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