Crystallization Process of Photoexcited High-Spin Sites in Co--Fe Cyanide Film
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概要
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The dynamics of the photoinduced phase transition (PIPT) was systematically investigated in Co--Fe cyanide film, Na0.16Co[Fe(CN)6]0.715.8H2O, at 160 and 190 K above the melting temperature (T_{\text{m}} = 120 K) of the photoinduced phase. Below T_{\text{m}}, the film shows a permanent photoinduced phase transition from a low-spin (LS) phase to a static high-spin (HS) phase. We found that the relaxation curve from the photo-excited state changes from the exponential type to Avrami's type as the excitation photon density (n) increases. We interpreted this behavior in terms of crystallization process of the photo-created HS sites.
- 2011-02-15
著者
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Moritomo Yutaka
Graduate School Of Pure And Applied Science University Of Tsukuba
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ITO Minato
Graduate School of Pure and Applied Science, University of Tsukuba
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Kamioka Hayato
Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
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Kamioka Hayato
Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba, Tsukuba, Ibaraki 305-8571
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