Theory of Ferroelastic Phase Transition in NaCN,KCN and RbCN

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概要

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• The ferroelastic phase transition in NaCN, KCN and RbCN is studied theoreticallybased on the coupling between the lattice strains and the rotational degrees offreedom of CN molecules. The strains of E. and T.. symmetries couple nonlinearly inthe free energy through the rotational states of the CN molecule. The rotational statesof the CN molecule in [100] directions are included as well as those in [110] and [1 l 1 ]directions to describe the phase transition in NaCN, and the temperature dependenceof the elastic constants C..-C.. and C.. are compared with the experimental result ingood agreement. The possible types of transition sequences are also examined in theparameter space.

• 社団法人日本物理学会の論文
• 1987-12-15

著者

• Ohno Eizo

  Department Of Physics Kwansei Gakuin University:sharp Corporation Central Research Laboratories

関連論文

• Theory of Structural Phase Transition in Alkali Cyanides
• Theory of Ferroelastic Phase Transition in NaCN,KCN and RbCN

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