Phase Transition and Soft Mode in Orthorhombic K_3Co (CN)_6
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概要
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Raman spectra of K.Co. ,Fe.(CN). (,vt0.03) were measured in the Tom-perature range from room temperature to 22 K. The room temperature phasewas the orthorhombic polytype of K.Co(CN)5. It was found that this crystal un-dergoes a structural phase transition at 81 K ft"om the observation of a softmode which decreases its frequency as the transition temperature is approachedfrom both sides. On the basis of the polarized Raman measurements of the softmode and symmetry consideration, the structure below 81 K was found to bemonoclinic.
- 社団法人日本物理学会の論文
- 1983-01-15
著者
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Nakagawa Ichiro
Department Of Chemistry Faculty Of Science Tohoku University
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MORIOKA Yoshiyuku
Department of Chemistry,Faculty of Science,Tohoku University
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Morioka Yoshiyuku
Department Of Chemistry Faculty Of Science Tohoku University
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