Virt. J. Ultrafast Sci. / Volume 9 / Issue 2 / CONDENSED MATTER PHYSICS

Simultaneous Measurements of Picosecond Lattice and Charge Dynamics in Co--Fe Cyanides

Source: Appl. Phys. Express 3, 016601 (2010); doi:10.1143/APEX.3.016601

Issue Date: February 2010

ABSTRACT

^* Full Text: Access via Source Journal Abstract

PUBLICATION DATA

ISSN:

1553-9601 (online)

Publisher:

JSAP

Yoshimitsu Fukuyama
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Nobuhiro Yasuda
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Hayato Kamioka
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Jungeun Kim
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Takayuki Shibata
TIMS, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan

Hitoshi Osawa
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Takeshi Nakagawa
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Haruno Murayama
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Kenichi Kato
CREST, Japan Science and Technology Agency, Chiyoda, Tokyo 102-0075, Japan

Yoshihito Tanaka
CREST, Japan Science and Technology Agency, Chiyoda, Tokyo 102-0075, Japan

Shigeru Kimura
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Takashi Ohshima
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Hitoshi Tanaka
XFEL Project Head Office/RIKEN, Sayo, Hyogo, 679-5198, Japan

Masaki Takata
CREST, Japan Science and Technology Agency, Chiyoda, Tokyo 102-0075, Japan

Yutaka Moritomo
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan

Simultaneousmeasurements of picosecond time-resolved synchrotron-radiation (SR) X-ray diffraction and femtosecondtime-resolved visible absorption were performed at BL40XU beamline of SPring-8on two films of Co--Fe cyanides, Na_0.77Co[Fe(CN)₆]_0.902.9H₂O (NCF90) and Na_0.16Co[Fe(CN)₆]_0.713.8H₂O(NCF71). The simultaneous measurements unambiguously revealed that the photoinduced chargetransfer between the Co and Fe sites causes uniform volumeexpansion/contraction within 100 ps. The photoinduced lattice contraction observed inthe NCF71 film can be interpreted in terms of thephotoinduced formation of a hidden metastable phase. ©2010

Permalink:

http://dx.doi.org/10.1143/APEX.3.016601

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Simultaneous Measurements of Picosecond Lattice and Charge Dynamics in Co--Fe Cyanides

Source: Appl. Phys. Express 3, 016601 (2010); doi:10.1143/APEX.3.016601