Femtosecond mid-IR pump-probe spectroscopy of photoinduced insulator to metal transition in dimer Mott insulator κ-(BEDT-TTF)2X

Yohei Kawakami, H. Nakaya, Shinichiro Iwai, N. Yoneyama, Takahiko Sasaki, N. Kobayashi

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Ultrafast dynamics of the photoinduced insulator (I) to metal (M) transition were investigated using femtosecond mid-infrared pump-probe spectroscopy in two-dimensional organic Mott insulators [bis (ethylenedithio)]-tetrathiafulvalene (BEDT-TTF) salts κ-(BEDT-TTF)2X (κ-(ET)2X, where X denotes anion). In κ-(d-ET)2Cu[N(CN)2]Br, a metallic state was photogenerated using a phonon-mediated mechanism: the effective bandwidth increases through the photoinduced molecular rearrangement. The mechanism differs fundamentally from the previously reported photoinduced filling control in one-dimensional Mott insulators.

本文言語English
ページ(範囲)3085-3088
ページ数4
ジャーナルJournal of Physics and Chemistry of Solids
69
12
DOI
出版ステータスPublished - 2008 12 1

ASJC Scopus subject areas

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

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