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ICAME 2003 pp 143-149 | Cite as

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
Conference paper

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 XMT 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.

Key words

molecule-based magnet photoinduced magnetization 3d-4f assembly Mössbauer spectroscopy 

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Copyright information

© Springer Science+Business Media Dordrecht 2004

Authors and Affiliations

  • Guangming Li
    • 1
    • 3
  • Takashiro Akitsu
    • 1
  • Osamu Sato
    • 2
  • Yasuaki Einaga
    • 1
  1. 1.Department of Chemistry, Faculty of Science and TechnologyKeio UniversityYokohamaJapan
  2. 2.Special Research Laboratory for Optical ScienceKanagawa Academy of Science and TechnologyTakatsu-ku, KawasakiJapan
  3. 3.Faculty of Chemistry and Chemical EngineeringHeilongjiang UniversityHarbinP. R. China

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