Electrical conductivity of one-dimensional halogen-bridged metal complexes at high pressures

Ichimin Shirotani, Akira Kawamura, Masahiro Yamashita, Koshiro Toriumi, Haruki Kawamura, Takehiko Yagi

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

The resistivity of four one-dimensional halogen-bridged metal complexes, Pt2(CH3CS2)4I and M(chxn)2X3 (M = Ni, Pd, Pt; X = Br; I; chxn = 1R, 2R-cyclohexanediamine), has been studied up to 7 GPa under quasi-hydrostatic conditions. The resistivity of Pt2(CH3CS2)4I and Ni(chxn)2Br3 with regular chains monotonically decreased with increasing pressure. On the other hand, the resistivity of Pd(chxn)2Br3 and Pt(chxn)2I3 with alternating lienar chains rapidly decreased in the low pressure region. The activation energy of the four metal complexes was in the range 0.03-0.05 eV at 7 GPa. Metallic behavior was not observed even at high pressures. The electrical conduction of the complexes is discussed.

Original languageEnglish
Pages (from-to)265-270
Number of pages6
JournalSynthetic Metals
Volume64
Issue number2-3
DOIs
Publication statusPublished - 1994 Jun

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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