Simultaneous measurements of picosecond lattice and charge dynamics in Co-Fe cyanides

Yoshimitsu Fukuyama, Nobuhiro Yasuda, Hayato Kamioka, Jungeun Kim, Takayuki Shibata, Hitoshi Osawa, Takeshi Nakagawa, Haruno Murayama, Kenichi Kato, Yoshihito Tanaka, Shigeru Kimura, Takashi Ohshima, Hitoshi Tanaka, Masaki Takata, Yutaka Moritomo

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Simultaneous measurements of picosecond time-resolved synchrotron-radiation (SR) X-ray diffraction and femtosecond time-resolved visible absorption were performed at BL40XU beamline of SPring-8 on two films of Co-Fe cyanides, Na 0:77Co[Fe(CN)6]0:902.9H2O (NCF90) and Na0:16Co[Fe(CN)6]0:713.8H2O (NCF71). The simultaneous measurements unambiguously revealed that the photoinduced charge transfer between the Co and Fe sites causes uniform volume expansion/contraction within 100 ps. The photoinduced lattice contraction observed in the NCF71 film can be interpreted in terms of the photoinduced formation of a hidden metastable phase.

Original languageEnglish
Article number016601
JournalApplied Physics Express
Volume3
Issue number1
DOIs
Publication statusPublished - 2010 Jan
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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