A Structural Study of the Commensurate-Commensurate Transition in K_2CoCl_4 at 142 K

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概要

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• The structures of the commensurate phase Ill and IV of PotassiumTetrachlorocobaltate was determined by single-crystal X-ray diffractometry at roomtemperature and 134 K, respectively. The room-temperature structure is the same asthe orthorhombic modification determined by Vermin, Verschoor and IJdo (ActaCrystallogr. B32 (1976) 3325). The symmetry lowering with the phase transition at142 K is induced by a rotation of one kind of the Coal. tetrahedra, which have ratherlarge thermal pararneters at room temperature, about the c-axis with accompanying atranslation along the *-axis.[structure analysis, commensurate phase, K.CoC1., lock-in transition, X-ray ]l diffraction, modulated structurel

• 社団法人日本物理学会の論文
• 1991-01-15

著者

• MASHIYAMA Hiroyuki

  Yamaguchi University

関連論文

• Incommensurate-Commensurate Transition in k_2ZnBr_4 and K_2CoBr_4
• A Structural Study of the Commensurate-Commensurate Transition in K_2CoCl_4 at 142 K

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