A Model of Successive Transitions in {N (CH_3)_4}_2ZnCl_4
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概要
- 論文の詳細を見る
On the basis of a model free energy, mechanisrns of the successive transitionsfrom a normal phase to an incommensurate one, s. commensurate one and finallyto some low temperature phases are investigate<i. The free energy consists ofterms of six physical quantities, and is invariant in the normal phase Pmcn. It isshown that the incommensurate phase transfornxs to the commensurate ferro-electric phase with fivefold cell-length. Further the temperature is decreased,then a triple cell-length phase is realized. The present model is appropriate for{N(CH.).}.ZI1Cl4 and {N(CH.).}.CoCl., for e>:ample, and differs frorrn thoseproposed for K.Se0,( and the isomorphous materials.
- 社団法人日本物理学会の論文
- 1980-12-15
著者
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MASHIYAMA Hiroyuki
Department of Physics,Faculty of Science,Yamaguchi University
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Mashiyama Hiroyuki
Department Of Physics Biology And Informatics Faculty Of Science Yamaguchi University
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