Desorption-induced first-order phase transition in a cyano-bridged compound

被引：5

作者：

Moritomo, Y. ^{[1
]}

Nakada, F. ^{[1
]}

Kamioka, H. ^{[1
]}

Kim, J. E. ^{[2
]}

Takata, M. ^{[3
]}

机构：

[1] Univ Tsukuba, Dept Phys, Tsukuba, Ibaraki 3058571, Japan

[2] JASRI SPring 8, Sayo, Hyogo 6795198, Japan

[3] RIKEN, SPring 8, Sayo, Hyogo 6795148, Japan

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 14期

基金：

日本科学技术振兴机构;

关键词：

D O I：

10.1063/1.2908049

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The guest-host interaction is one of the promising tools to control the material state. Here, we found that a cyano-bridged compound Na(0.50)Co[Fe(CN)(6)](0.72)3.8H(2)O shows a first-order structural phase transition below a critical pressure P(c) (150 Pa) at 300 K. Judging from suppression of the OH stretching mode in the infrared spectra, we ascribed the phase transition to desorption of the ligand waters. The phase transition accompanies a significant change of the visible absorption spectra, reflecting the strong hybridization between the Co e(g) state and the CN sigma states.

引用

页数：3

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