| 1. | The effects of the thickness , the interfacial coupling constant and the temperature on the hysteresis of the bilayer are investigated
我们考察了薄膜厚度、界面耦合强度和温度对铁电双层薄膜电滞回线的影响。 |
| 2. | Ii ) with the increase of the long - range interaction and the interfacial coupling , the pyroelectric coefficient before the phase transition temperature decreases
另外，随着长程相互作用以及界面耦合强度的增强，相变温度以下的热电系数明显减小。 |
| 3. | We find that i ) with the increase of the long - range interaction , the interfacial coupling and the thickness of one period , the phase transition temperature of the ferroelectric superlartice increases
我们发现，随着长程相互作用和界面耦合作用的增强以及铁电超晶格尺寸的增大，整个材料的相变温度升高。 |
| 4. | If the interfacial coupling of the ferroelectric bilayer is antiferroelectric , we find it is possible to exist triple hystersis loops once the parameters of the two slabs are selected appropriately
当铁电双层膜的界面耦合为反铁电耦合时，发现在适当的材料厚度、反铁电耦合强度、横场和温度的匹配下可以观察到多态电滞回线。 |
| 5. | The effects of the interfacial coupling and the thickness of one period on the pyroelectric properties of the superlartice are investigated by taking into account the long - range interaction
研究了长程相互作用对铁电超晶格热电性质的影响，并在考虑了长程相互作用的情况下，分别研究了界面耦合和尺寸效应对铁电超晶格热电性质的影响。 |
| 6. | It is found that the pyroelectric coefficient and susceptibility increase with the decrease of the magnitude of the long - range interaction and the interfacial coupling when the temperature is lower than the phase transition temperature
我们发现，在相变温度以下，随着双层薄膜的界面耦合的减弱，铁电双层薄膜的热电系数和介电极化率增加。 |
| 7. | The intrinsic hysteresis of a ferroelectric bilayer with an antiferroelectric interfacial coupling is studied within the framework of tim . we find it is possible to exist triple hysteresis loops once the parameters of the two slabs are selected appropriately
对反铁电界面耦合的铁电双层结构薄膜的内禀电滞回线研究中，我们发现在适当的条件下，能出现多态电滞回线。 |
| 8. | Iv ) for the strong interfacial coupling , there exist three pyroelectric peaks in the temperature curve of pyroelectric coefficient , and with the decrease of the interfacial coupling , the number of the pyroelectric peaks will decrease gradually
我们还发现，较强的界面耦合导致热电系数的温度曲线上的三个热电峰的出现；而界面耦合强度的减弱及铁电超晶格尺寸的减少将导致某些热电峰的消失。 |
| 9. | The dependence of the curie temperature and the critical transverse field on the long - range exponent is obtained . long - range effects on the pyroelectric coefficient and susceptibility of a ferroelectric bilayer with a ferroelectric interfacial coupling are investigated by use of the transverse ising model within the framework of mean field theory
同时还考察了长程相互作用对居里温度和临界横场的影响；界面、长程相互作用及横场对铁电双层膜的热电性质和介电性质的影响在本文的第三部分我们作了较为详细的研究。 |
| 10. | We also find that the strong long - range interaction , the large transverse field and weak interfacial coupling can lead to the disappearance of some of the peaks of the pyroelectric coefficient and susceptibility of the ferroelectric bilayer . we believe that it is the reason why these phenomena always take place in the experimental studies
我们还发现，较强的长程相互作用，较大的横场以及相对较弱的界面耦合作用将会导致铁电双层薄膜的热电系数和介电极化率的某些峰消失，这可以用来解释在实验中常常观测不到热释电系数和介电极化率的某些峰值的原因。 |
