heteropolar crystal

Growth habits of polar organic crystals are mainly determined by: (1) the internal structures of the crystals; and (2) the interactions of solvent molecules with the growth interfaces, particularly with two polar faces.

极性有机晶体在不同的溶剂中具有明显不同的生长习性,主要有两个方面的原因:一是极性有机晶体属非中心对称性晶类,晶体具有极轴,极轴的存在对分子堆积和晶体生长具有重要影响;另一是极性有机晶体的界面结构不同,溶剂与晶体界面的相互作用不同,使得晶体同一面族的生长速率不同,从而导致了晶体习性的改变。

The crystal Habits and Formation Mechanism of Polar crystal;

极性晶体结晶习性的形成机理

There is weak coupling between the electron and SA phonon but strong coupling between the electron and SO phonon for many polar crystals .

有些极性晶体 ,电子与表面光学声子 (SO)耦合强 ,与表面声学声子 (SA)耦合弱。