First observation of photoinduced magnetization for the cyano-bridged 3d-4f heterobimetallic assembly Nd(DMF)4(H2O)3(μ-CN)Fe(CN)5.H2O (DMF = N,N-dimethylformamide)

Guangming Li, Takashiro Akitsu, Osamu Sato, Yasuaki Einaga

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Photoinduced magnetization of the cyano-bridged 3d-4f hetero-bimetallic assembly Nd (DMF)4(H2O)3(μ-CN)Fe(CN)5.H2O (1) (DMF = N,N-dimethylformamide) is described in this paper. The χMT values are enhanced by about 45% after UV light illumination in the temperature range of 5-50 K. We propose that UV light illumination induces a structural distortion in 1. This small structural change is propagated by molecular interactions in the inorganic network. Furthermore, the cooperativity resulting from the molecular interaction functions to increase the activation energy of the relaxation processes, which makes observation of the photoexcited state possible. The flexible network structure through the hydrogen bonds in 1 plays an essential role for the photoinduced phenomenon. This finding may open up a new domain for developing molecule-based magnetic materials.

Original languageEnglish
Pages (from-to)143-149
Number of pages7
JournalHyperfine Interactions
Volume156-157
Issue number1-4
DOIs
Publication statusPublished - 2004 Mar

Keywords

  • 3d-4f assembly
  • Molecule-based magnet
  • Mössbauer spectroscopy
  • Photoinduced magnetization

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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