X-ray investigation for α′-(BEDT-TTF)2BrICl at low temperature

M. Watanabe, Y. Noda, H. Taniguchi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The organic semiconductor α′-(BEDT-TTF)2BrICl, which exhibits an abrupt decrease of static magnetic susceptivity at Tc (approximately 200 K) with decreasing temperature was investigated by X-ray diffraction experiments. The drastic first-order structural phase transition at Tc was found. The unitcell volume became approximately half of that above Tc. The result of crystal structure analysis at 25 K indicated that the donor molecular arrangement was no longer "α′-type" but "β"-type" below Tc.

Original languageEnglish
Pages (from-to)163-166
Number of pages4
JournalJournal of Low Temperature Physics
Volume142
Issue number3-4
DOIs
Publication statusPublished - 2006 Feb

Keywords

  • BEDT-TTF
  • Organic conductor
  • Structural phase transition
  • Tri-halide anion
  • X-ray crystal structure analysis

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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