Superlattice structural transition in the organic superconductor χ-(BEDT-TTF)2Cu[N(CN)2]Br

Yoshio Nogami, Jean Paul Pouget, Hiroshi Ito, Takehiko Ishiguro, Gunzi Saito

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)


By the X-ray "monochromatic" Laue photographic method, we observe the formation below 200 K of superlattice reflections in χ-(BEDT-TTF)2Cu[N(CN)2]Br which exhibits the highest superconducting critical temperature at ambient pressure (Tc ∼ 11.6 K) among the organic superconductors. This displacive structural transition doubles the lattice parameter along c. We discuss the driving force of this instability and the consequences of this structural transition on the electronic and lattice properties of this salt.

Original languageEnglish
Pages (from-to)113-116
Number of pages4
JournalSolid State Communications
Issue number2
Publication statusPublished - Jan 1994
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


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