Slow dynamics of the magnetization in one-dimensional coordination polymers: Single-chain magnets

Hitoshi Miyasaka, Miguel Julve, Masahiro Yamashita, Rodolphe Clérac

Research output: Contribution to journalArticlepeer-review

349 Citations (Scopus)

Abstract

Slow relaxation of the magnetization (i.e., magnet-like behavior) in materials composed of magnetically isolated chains was observed for the first time in 2001. This type of behavior was predicted in the 1960s by Glauber in a chain of ferromagnetically coupled Ising spins (the so-called Glauber dynamics). In 2002, this new class of nanomagnets was named single-chain magnets (SCMs) by analogy to single-molecule magnets that are isolated molecules displaying related superparamagnetic properties. A long-range order occurs only at T ) 0 K in any pure one-dimensional (1D) system, and thus such systems remain in their paramagnetic state at any finite temperature. Nevertheless, the combined action of large uniaxial anisotropy and intrachain magnetic interactions between highspin magnetic units of the 1D arrangement promotes long relaxation times for the magnetization reversal with decreasing temperature, and finally at significantly low temperatures, the material can behave as a magnet. In this Forum Article, we summarize simple theoretical approaches used for understanding typical SCM behavior and some rational synthetic strategies to obtain SCM materials together with representative examples of SCMs previously reported.

Original languageEnglish
Pages (from-to)3420-3437
Number of pages18
JournalInorganic Chemistry
Volume48
Issue number8
DOIs
Publication statusPublished - 2009 Apr 20

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Fingerprint

Dive into the research topics of 'Slow dynamics of the magnetization in one-dimensional coordination polymers: Single-chain magnets'. Together they form a unique fingerprint.

Cite this