Investigation of the Jahn-Teller effect in the C-60 monoanion under high pressure

E. A. Francis, S. Scharinger, K. Németh, K. Kamarás, C. A. Kuntscher

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report the Jahn-Teller (JT) dynamics of the $-60 monoanion under pressure in (Ph4P)2IC60. (Ph4P)2IC60 was synthesized by electrochemical crystallization and investigated by infrared transmission measurements up to 5 GPa. The behavior of two T1u vibrational modes of $-60, which exhibit signatures of the dynamic JT effect at ambient conditions, was followed under pressure. The pressure-induced transition from the dynamic to the static JT state was observed at ~2 GPa. Due to symmetry lowering related to the dynamic JT effect, the G1u mode is activated and shows a splitting at the pressure-induced dynamic-to-static JT distortion.

Original languageEnglish
Pages (from-to)3047-3050
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume247
Issue number11-12
DOIs
Publication statusPublished - Dec 1 2010

Keywords

  • Fullerides
  • High pressure
  • Infrared spectroscopy
  • Jahn-Teller effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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