针对介电超晶格结构的特殊极化问题，自行研制了极化设备。
Aiming at the polarization problem of dielectric superlattice field, we developed poling equipment by ourselves.
应用平均场理论，在横场伊辛模型的框架内，研究了退极化场对铁电超晶格热力学性质的影响。
Using mean field theory, the effects of depolarization field on the thermodynamic properties of ferroelectric superlattice is studied within the framework of the transverse Ising model.
说明了电子-晶格耦合对非线性极化的影响。
The effect of electron-lattice coupling on the nonlinear susceptibility is explained.
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