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

Yutaka Moritomo | Zendy; F. Nakada | Zendy; Hayato Kamioka | Zendy; J. E. Kim | Zendy; Masaki Takata | Zendy

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

Author(s) -

Yutaka Moritomo,

F. Nakada,

Hayato Kamioka,

J. E. Kim,

Masaki Takata

Publication year - 2008

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2908049

Subject(s) - desorption , phase transition , infrared spectroscopy , chemistry , absorption spectroscopy , phase (matter) , spectral line , ligand (biochemistry) , absorption (acoustics) , crystallography , analytical chemistry (journal) , materials science , condensed matter physics , adsorption , optics , organic chemistry , physics , biochemistry , receptor , astronomy , composite material

The guest-host interaction is one of the promising tools to control the material state. Here, we found that a cyano-bridged compound Na0.50Co[Fe(CN)6]0.723.8H2O shows a first-order structural phase transition below a critical pressure Pc (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 eg state and the CNσ states

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