Electrochromism and electrochemical magnetism in Ni-Fe Prussian blue

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Abstract

We studied the electrochemical and magnetic properties of NiFe Prussian blue. The NiFe Prussian blue was synthesized on Ni electrodes in the form of thin films by an electrochemical technique. Measurements of its magnetic properties show that NiFe Prussian blue with the Fe III-low spin (LS)-CN-Ni II structure exhibits ferromagnetic properties, with T c (critical temperature)=25 K. On the other hand, the reduced form, which has the Fe II-LS-CN-Ni II structure, is paramagnetic. This means that the magnetic properties can be controlled between ferromagnetic and paramagnetic by an electrochemical method. Furthermore, it is well known that NiFe Prussian blue exhibits electrochromic properties. Hence, this compound is a multifunctional, molecule-based compound in which optical and magnetic properties can be controlled by an electrochemical redox reaction.

Original languageEnglish
Pages (from-to)773-779
Number of pages7
JournalJournal of Solid State Electrochemistry
Volume11
Issue number6
DOIs
Publication statusPublished - Jun 1 2007

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry
  • Electrical and Electronic Engineering

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