| 论文摘要 | 第8-11页 |
| ABSTRACT | 第11页 |
| LIST OF SYMOBL | 第14-16页 |
| Chapter One General Introduction | 第16-32页 |
| 1.1: Basic concepts and definitions | 第16-22页 |
| 1.2: Typical mixed ferroelectrics | 第22-29页 |
| 1.3: Effective field approach | 第29-30页 |
| 1.4: Scope of the present work | 第30-32页 |
| Chapter Two Compositional Dependence of the Curie Temperature | 第32-51页 |
| 2.1: Introduction | 第32-33页 |
| 2.2: Effective field approach with two sub-lattice model | 第33-36页 |
| 2.3: Results and Discussion | 第36-50页 |
| 2.4: Summary | 第50-51页 |
| Chapter Three Spontaneous Polarization and Dielectric Constant in the 2nd Order Phase Transition Systems | 第51-71页 |
| 3.1: Introduction | 第51-52页 |
| 3.2: Spontaneous polarization | 第52-64页 |
| 3.2.1: Results and Discussion | 第53-64页 |
| A. The effect of the dipolar contribution | 第53-55页 |
| B. The effect of the number of the dipoles per unit volume | 第55-59页 |
| C. The effect of the electric dipole moment | 第59-63页 |
| D. The effect of the composition ratio | 第63-64页 |
| 3.3: Dielectric Constant | 第64-70页 |
| 3.3.1: Results and Discussion | 第66-70页 |
| A. The effect of the dipolar contribution | 第66-67页 |
| B. The effect of the the number of the dipoles per unit volume | 第67-69页 |
| C. The effect of the composition ratio | 第69-70页 |
| 3.4: Summary | 第70-71页 |
| Chapter Four Spontaneous Polarization and Dielectric Constant in the 1st Order Phase Transition Systems | 第71-90页 |
| 4.1: Introduction | 第71-72页 |
| 4.2: Spontaneous Polarization | 第72-80页 |
| 4.2:1 Results and Discussion | 第73-80页 |
| A. The effect of the dipolar contribution | 第73-75页 |
| B. The effects of the dipoles moment | 第75-77页 |
| C. The effect of the quadrupolar contribution | 第77-79页 |
| D. The effect of the composition ratio | 第79-80页 |
| 4.3: Dielectric constant | 第80-89页 |
| 4.3.1: Results and Discussion | 第82-89页 |
| A. The effect of the dipolar contribution | 第82-84页 |
| B. The effects of the dipoles moment | 第84-86页 |
| C. The effect of the quadrupolar contribution | 第86页 |
| D. The effect of the composition ratio | 第86-89页 |
| 4.4: Summary | 第89-90页 |
| Chapter Five Conclusions | 第90-92页 |
| References | 第92-97页 |
| Publications | 第97-98页 |
| Acknowledgments | 第98-104页 |
