Uniaxial strain effect on the θ-phase organic conductor with a large dihedral angle, θ-(TMET-TTP)4PF6

Tomoaki Takeuchi, Hirotada Hoshino, Ryusuke Kondo, Seiichi Kagoshima, Masaya Enomoto, Tadashi Kawamoto, Takehiko Mori

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

For the organic conductor θ-(TMET-TTP)4PF6 (TMET-TTP: 2-[4,5-bis(methylthio)-1,3-dithiol-2-ylidene]-5-(4,5-ethylenedithio- 1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalene), electrical resistance has been measured under the uniaxial strain applied along the a-, b-, and c-axes as well as under hydrostatic pressure. Contrary to the prediction of the universal phase diagram in which the c-axis strain will raise the metal-insulator transition temperature by expanding the dihedral angle, the insulating state is suppressed under the strain in all directions. The results are interpreted in terms of the increasing intra-stack transfer integral in the large dihedral angle region.

Original languageEnglish
Pages (from-to)1152-1154
Number of pages3
Journaljournal of the physical society of japan
Volume72
Issue number5
DOIs
Publication statusPublished - May 1 2003
Externally publishedYes

Keywords

  • Dihedral angle
  • Organic conductor
  • Uniaxial strain
  • Universal phase diagram

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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