Time-resolved investigation of photoinduced structural change in Co-Fe cyanides

被引：8

作者：

Kamiya, M ^{[1
]}

Hanawa, M

Moritomo, Y

Isobe, Y

Tateishi, J

Kato, K

Nakamura, A

机构：

[1] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan

[2] JST, PRESTO, Kawaguchi, Saitama 3320012, Japan

[3] JASRI, SPring8, Mikazuki, Hyogo 6795198, Japan

来源：

PHYSICAL REVIEW B | 2004年 / 69卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.69.052102

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoexcited effects have been investigated for Co-Fe cyanides, K0.18Co[Fe(CN)(6)](0.82).4.57H(2)O and K0.45Co[Fe(CN)(6)](0.87).4.80H(2)O, by means of the transient absorption method. For both the compounds, the photoexcitation at 532 nm induces a structural change into a metastable phase at 91 K, and the relaxation time tau exponentially decreases as temperature increases. We have found a faster decay process (tau(2)=10-40 ms) that dominates above similar to220 K, and discuss its interrelation with the photoinduced structural change.

引用

页数：4

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