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

Research output: Contribution to journalArticle

1 Citation (Scopus)

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
JournalPhysica B: Condensed Matter
Volume405
Issue number11 SUPPL.
DOIs
Publication statusPublished - Jun 1 2010
Externally publishedYes

Fingerprint

Organic conductors
conductors
reflectance
Photoexcitation
Relaxation time
excitation
Charge transfer
Molecules
Electrons
photoexcitation
ultraviolet radiation
conduction electrons
relaxation time
charge transfer
conduction
life (durability)
Temperature
pulses
molecules
simulation

All Science Journal Classification (ASJC) codes

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

Cite this

Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)2PF6. / Onda, K.; Shimizu, M.; Sakaguchi, F.; Ogihara, S.; Ishikawa, T.; Okimoto, Y.; Koshihara, S.; Shaod, X. F.; Nakano, Y.; Yamochi, H.; Saito, G.

In: Physica B: Condensed Matter, Vol. 405, No. 11 SUPPL., 01.06.2010.

Research output: Contribution to journalArticle

Onda, K, Shimizu, M, Sakaguchi, F, Ogihara, S, Ishikawa, T, Okimoto, Y, Koshihara, S, Shaod, XF, 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, vol. 405, no. 11 SUPPL.. https://doi.org/10.1016/j.physb.2009.11.054
Onda, K. ; Shimizu, M. ; Sakaguchi, F. ; Ogihara, S. ; Ishikawa, T. ; Okimoto, Y. ; Koshihara, S. ; Shaod, X. F. ; Nakano, Y. ; Yamochi, H. ; Saito, G. / Ultrafast and large reflectivity change by ultraviolet excitation of the metallic phase in the organic conductor (EDO-TTF)2PF6. In: Physica B: Condensed Matter. 2010 ; Vol. 405, No. 11 SUPPL.
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AU - Ogihara, S.

AU - Ishikawa, T.

AU - Okimoto, Y.

AU - Koshihara, S.

AU - Shaod, X. F.

AU - Nakano, Y.

AU - Yamochi, H.

AU - Saito, G.

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