固—固相变数目、相变温度和相变的有序—无序效应主要取决于中心金属离子的种类。
The number and the peak temperature as well as order-disorder effect of total phase transition are related to the centre metal ions.
由于受到表面偏析场和有限尺寸效应的影响，薄膜有序无序相变比体材料相变要复杂。
Due to the combined effects of surface segregation and finite size confinement, the order-disorder phase transitions of the thin films are much more complicated than those of the bulk.
根据这个新的实验结果和文献上关于用中子衍射测定的晶体结构资料，我们做出了钽酸锂的铁电相变为有序无序型的推论。
On the basis of these new experimental results and the crystal structure data in literature, we suggest that the ferroelectric phase transition in LiTaO3 may have an order-disorder character.
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