Origin of charge transfer phase transition and ferromagnetism in (CnH2n+1)4N[FeIIFeIII(dto )3] (dto=C2O2S2)

M. Enomoto, M. Itoi, Y. Ono, M. Okubo, N. Kojima

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)

Abstract

Mixed-valence complex (n-C3H7)4N[FeIIFeIII(dto) 3] (dto=C2O2S3) shows a new-type of phase transition coupled with spin and charge around 120 K, where the charge transfer between the FeII and FeIII sites occurs reversibly, and shows the ferromagnetic transition at 6.5 K. We have investigated the transport and magnetic properties for the single crystal of (n-C3H7)4N[FeIIFeIII(dto) 3]. Both of the intra- and interlayer resistivity showed an anomalous drop due to the charge transfer phase transition. The anisotropy of the magnetization implied that the spins in the ferromagnetic ordered state were aligned parallel to the layer of [FeIIFeIII (dto)3]∞.

Original languageEnglish
Pages (from-to)1231-1232
Number of pages2
JournalSynthetic Metals
Volume137
Issue number1-3
DOIs
Publication statusPublished - 2003 Apr 4
Externally publishedYes
EventICSM 2002 - Shanghai, China
Duration: 2002 Jun 292002 Jul 5

Keywords

  • Magnetic measurements
  • Magnetic phase transition
  • Transport measurements

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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