Phenomenological Theory of the Transition Sequence in K_2SeO_4, Pnam → an Incommensurate Phase → Commensurate Pna2_1
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A phenomenological theory of the transition sequence in K.Se0. is constructedorn the assumption that the phase of space group Pnam is prototypic. A widelyapplicable method is presented by which the therm.odynanvic potential function isdetermined. From this function, five possible phases nonconformal with oneanother are deduced which include the Pnam phase, the incomm.ensurate phaseand the commensurate Pna2? phase. The criteria are found for the transitionsbetween those three phases.
- 社団法人日本物理学会の論文
- 1977-07-15
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