Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)2PF6

K. Onda, M. Shimizu, F. Sakaguchi, S. Ogihara, T. Ishikawa, Y. Okimoto, S. Koshihara, X. F. Shaod, Y. Nakano, H. Yamochi, G. Saito

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Abstract

We examined the ultrafast response of the metallic high-temperature phase in the conducting charge transfer complex (EDO-TTF)2PF6. A large reflectivity change of approximately 10% was observed when the intra-molecular band was excited by a weak 3.1eV ultraviolet light pulse. The lifetimes of the photo-induced states were 0.2 and 0.7ps in the Drude-like band and the intra-molecular band, respectively. Measurement of the photo-induced spectrum just after photo-excitation and simulation using the Drude model revealed that the electronically excited EDO-TTF molecules shortened the relaxation time of conduction electrons and reduced the reflectivity of the Drude-like band.

Original languageEnglish
Pages (from-to)S350-S352
JournalPhysica B: Condensed Matter
Volume405
Issue number11 SUPPL.
DOIs
Publication statusPublished - Jun 1 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Onda, K., Shimizu, M., Sakaguchi, F., Ogihara, S., Ishikawa, T., Okimoto, Y., Koshihara, S., Shaod, X. F., Nakano, Y., Yamochi, H., & Saito, G. (2010). Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)2PF6. Physica B: Condensed Matter, 405(11 SUPPL.), S350-S352. https://doi.org/10.1016/j.physb.2009.11.054