Characterization of the half-filled DMTSA-BF4 by optical and magnetic measurements

J. Dong, K. Yakushi, K. Takimiya, T. Otsubo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Quasi one-dimensional half-filled radical salt DMTSA-BF4 shows high conductivity (σrt, ≈ 450Ω-1cm-1) and the metal-like temperature dependence down to ca. 180K, in contrast to the conventional half-filled organic charge-transfer salts. By the physical properties measurements we characterize the compound as a metal around room temperature due to the large t. On lowering temperature the system undergoes Peierls transition and becomes a semiconductor. Hubbard parameters Ueff and t for DMTSA-BF4 are estimated at 1.2 eV and 0.36 eV respectively.

Original languageEnglish
Pages (from-to)633-634
Number of pages2
JournalSynthetic Metals
Volume84
Issue number1-3
Publication statusPublished - 1997 Jan 1
Externally publishedYes

Keywords

  • Magnetic measurements
  • Metal-insulator phase transitions
  • Organic conductors based on radical cation
  • Reflection spectroscopy

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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