Photomagnetic hybrid ultrathin films

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Two novel types of photomagnetic hybrid ultrathin film (film A and B) of metal cyanides have been fabricated by means of the modified Langmuir-Blodgett method using a smectite clay mineral. Film A is composed of an amphiphilic azobenzene cation, a montmorillonite, and Prussian Blue in which photocontrol in the magnetization was realized by the photoisomerization of azobenzene chromophore. The observed photomagnetic efficiency was large (ca. 11%) due to the well-organized structure of the ultrathin film. Film B is composed of a quaternary ammonium salt, a montmorillonite, and Co-Fe Prussian Blue in which the photoinduced magnetization caused by the electron transfer exhibited an anisotropic response with regards to the direction of the applied magnetic field. This phenomenon is ascribed to the unique structure of Co-Fe Prussian Blue formed onto the clay layer.

Original languageEnglish
Pages (from-to)781-790
Number of pages10
JournalJournal of Solid State Electrochemistry
Volume11
Issue number6
DOIs
Publication statusPublished - 2007 Jun 1

Keywords

  • Clay mineral
  • Langmuir-Blodgett films
  • Organic-inorganic hybrid
  • Photomagnet
  • Prussian blue

ASJC Scopus subject areas

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

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