文摘
英文文摘
Chapter 1 Introduction
1.1 Low-Dimensional Peierls Systems
1.2 Analytic Nonadiabatic Approach Method
1.3 Purpose and Sructure of This Report
Bibliography
Chapter 2 Nonadiabatic Approach to SSH Model
2.1 Introduction
2.2 Model
2.3 Unitary Transformations
2.4 Effective Hamiltonian
2.5 The Green′s Function Theory
2.6 The Dimerization Gap of SSH Model
2.7 The Density-of-States
Bibliography
Chapter 3 Optical Absorption in Polyacetlene
3.1 Optical Absorption coefficient
3.2 Effect of the Quantum Lattice Fluctuations
3.3 Effectiveness of the Method
3.4 Conclusions
Bibliography
Chapter 4 Theoretical Study of a Spin-Peierls Model
4.1 Introduction
4.2 The Spin-Peierls Model
4.3 Theoretical Analysis
4.4 Aanlytic Approach
Bibliography
Chapter 5 Phase Diagram and Correlation Function of the Spin-Peierls System
5.1 Introduction
5.2 Phase Diagram and Dimerization Gap
5.3 The Density-of-States
5.4 The Spin Correlation Functions
5.5 Conclusions
Bibliography
Chapter 6 Bound State in (VO)2P2O7 Compound
6.1 Introduction
6.2 Experiment Investigation
6.3 The Hamiltonian
6.4 Theoretic Method and Results
6.5 Conclusions
Bibliography
Chapter 7 Optical-Absorption Spectra of Halogen-Bridged Mixed-Valence Tansition-Metal Complexes
7.1 Introduction
7.2 The 1-D Extended Peierls-Hubbard Model
7.3 Theoretical Analysis
7.4 Optical Absorption
7.5 Conclusions
Bibliography
Acknowledgments
Publications During The Post-Doctoral Period
Publications During The Doctoral Period
