Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy

S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, H. Okamoto, H. Okamoto, Y. Tokura, Y. Tokura, Y. Tokura

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128 Citations (Scopus)

Abstract

The observation of ultrafast optical switching from an ionic (I) to a neutral (N) state in tetrathiafulvalene-p-chloranil (TTF-CA) in femtosecond reflection spectroscopy was presented. The I phase produces N donor accepter strings within 2 ps during charge transfer and these initial N states at 4 K decayed with a lifetime of 300 ps. An evidence was detected near TNI, for the motion of the macroscopic N-I domain boundary with a period of 85 ps.

Original languageEnglish
Article number057402
Pages (from-to)574021-574024
Number of pages4
JournalPhysical review letters
Volume88
Issue number5
DOIs
Publication statusPublished - 2002 Feb 4
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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