30 fs infrared spectroscopy of photo-induced phase transition in frac(1, 4) filling organic salt

H. Nakaya, F. Hiramatsu, Y. Kawakami, S. Iwai, K. Yamamoto, K. Yakushi

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Primary dynamics of photo-induced melting of charge order (CO) and metallic domain formation in [bis(ethlylenedithio)] tetrathiafulvalene (BEDT-TTF) salts α-(BEDT-TTF)2I3 were studied using an infrared (1.4 μm) pump-probe spectroscopy with a time resolution of 30 fs. Faster (<30 fs) and slower (ca. 2 ps) responses of transient reflectivity accompanying the coherent phonon were detected. They are attributable to the local melting of CO and the stabilization of semi-macroscopic metallic domain, respectively. Moreover, the correlation time (τcor) of the photo-induced insulator to metal transition was also measured by double-pulse excitation. The observed τcor (0.4 ps) is shorter than the stabilization time of the semi-macroscopic metallic domain.

本文言語English
ページ(範囲)1065-1068
ページ数4
ジャーナルJournal of Luminescence
128
5-6
DOI
出版ステータスPublished - 2008 5

ASJC Scopus subject areas

  • 生物理学
  • 生化学
  • 化学 (全般)
  • 原子分子物理学および光学
  • 凝縮系物理学

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