Coherent dynamics of photoinduced phase formation in a strongly correlated organic crystal

Yoshitaka Matsubara, Sho Ogihara, Jiro Itatani, Nobuya Maeshima, Kenji Yonemitsu, Tadahiko Ishikawa, Yoichi Okimoto, Shin Ya Koshihara, Takaaki Hiramatsu, Yoshiaki Nakano, Hideki Yamochi, Gunzi Saito, Ken Onda

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Abstract

The photoinduced phase formation in a strongly correlated crystal (EDO-TTF)2PF6 (EDO-TTF: 4,5-ethylenedioxytetrathiafulvalene) is investigated using a 12 fs laser pulse. The formation time is determined as 40 fs with observation of coherence of electron-phonon coupled excited states prior to formation. The temperature-independent dephasing time is determined as ∼22 fs up to 180 K and the frequency of phonon oscillation is ∼38 THz, corresponding to the intramolecular vibrations in EDO-TTF. The phase formation is coherently controlled by relative-phase-controlled two-pulse excitation.

Original languageEnglish
Article number161102
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume89
Issue number16
DOIs
Publication statusPublished - Apr 3 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Matsubara, Y., Ogihara, S., Itatani, J., Maeshima, N., Yonemitsu, K., Ishikawa, T., Okimoto, Y., Koshihara, S. Y., Hiramatsu, T., Nakano, Y., Yamochi, H., Saito, G., & Onda, K. (2014). Coherent dynamics of photoinduced phase formation in a strongly correlated organic crystal. Physical Review B - Condensed Matter and Materials Physics, 89(16), [161102]. https://doi.org/10.1103/PhysRevB.89.161102