A Note on the Condensation of a Mode R Following the Condensation of a Soft Mode Q When R Couples with Q Merely in the Form Q 2 R 2

摘要: Previously the author described that when soft mode system consists of a non-degenerate alone, there should always occur only one ferroic space group in transition sequence. Let Q and R denote coordinates this some other mode, respectively. Certain physicists suspect overlooked possibility that, on continuous cooling, lower symmetry may additionally arise from condensation induced by increase | s through coupling 2 free energy function. In present paper explains his committing no such fault validity previous description viewpoint heterophone