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二维拓扑体系及过渡金属薄膜的能带及输运特性研究

摘要第5-8页
ABSTRACT第8-10页
Nomenclature第14-15页
Chapter 1 Introduction第15-33页
    1.1 Quantum Hall Effect (QHE)第16-21页
        1.1.1 Landau levels第16-18页
        1.1.2 Pumping第18-19页
        1.1.3 Edge States第19-20页
        1.1.4 Periodic Potential第20-21页
    1.2 Topological Phases in Atomic Crystal Layers第21-26页
        1.2.1 Honeycomb Lattice and the Haldane Model第21-24页
        1.2.2 Haldane's Model with Spin: Graphene as Topological Insulator (TI)第24-26页
    1.3 Three-dimensional (3D) Topological Phases第26-33页
        1.3.1 3D TI第26-27页
        1.3.2 3D QHE第27-33页
Chapter 2 QAHE from In-plane Magnetization第33-63页
    2.1 Review of QAHE from Out-of-plane Magnetization第33-37页
        2.1.1 Graphene with Magnetism and Rashba Spin-orbit Coupling (SOC)第33-36页
        2.1.2 3D-TI Thin Films with Magnetic Doping第36-37页
    2.2 Symmetry Difference: Out-of-plane vs In-plane Magnetization第37-39页
    2.3 Buckled Lattices of Group-IV Elements第39-52页
        2.3.1 Tight-binding Hamiltonian第39-41页
        2.3.2 Monolayer Case第41-50页
        2.3.3 Multilayer Cases第50-52页
    2.4 Buckled Lattice of Group-V Elements第52-60页
        2.4.1 Model and Electronic Structure第52-55页
        2.4.2 Role of SOC Strength on Topological Phases第55-59页
        2.4.3 Role of Out-of-plane Component of Magnetization and Strain第59-60页
    2.5 Summary and Outlook第60-63页
Chapter 3 Valley Engineering and Spontaneous QAHE第63-85页
    3.1 Inter-valley Coupling第63-76页
        3.1.1 Superlattice with C_(3v) Symmetry and Quadratic Band Crossing第63-70页
        3.1.2 Superlattices with C_(6v) and C_(2v) Symmetries第70-71页
        3.1.3 Generalized Effective Hamiltonian from Symmetry Analysis第71-76页
    3.2 Quadratic Band Crossing with Coulomb Interaction第76-82页
        3.2.1 Instability of Fermi Point Driven by Interaction第76-77页
        3.2.2 Quadratic Band Crossing on Kagome Lattice Model第77-78页
        3.2.3 Spontaneous QAHE Driven by Interaction第78-81页
        3.2.4 Phase Transition第81-82页
    3.3 Summary and Outlook第82-85页
Chapter 4 Zero-line Mode (ZLM)第85-107页
    4.1 Review of ZLM Based on QVHE第85-91页
        4.1.1 Electronic Structures第85-89页
        4.1.2 Electronic Transport Properties of Topological ZLMs第89-91页
    4.2 ZLM from QAHE with Out-of-plane Magnetization第91-98页
        4.2.1 Motivation第91-92页
        4.2.2 Electronic Structures第92-94页
        4.2.3 Electronic Transport Properties第94-98页
    4.3 ZLMs from QAHE with In-plane Magnetization第98-105页
        4.3.1 Motivation第98-100页
        4.3.2 Model and Electronic Structure of ZLMs第100-102页
        4.3.3 Current Partition at Y-shape Junction第102-104页
        4.3.4 Network and Flat Bands第104-105页
    4.4 Summary and Outlook第105-107页
Chapter 5 Electronic Structures of Transition Metal Monolayers第107-131页
    5.1 Introduction第107-109页
    5.2 Model and Formalism第109-117页
        5.2.1 Tight-binding Model第110-116页
        5.2.2 First-principles Calculations第116-117页
    5.3 Energy Bands and Fitting Parameters第117-123页
        5.3.1 Lattice Constants第118页
        5.3.2 3d Transition-metal Monolayers第118-121页
        5.3.3 5d Transition-metal Monolayers第121-123页
    5.4 Fitting Method and Fitting Results第123-129页
        5.4.1 Nonlinear Fitting第123-127页
        5.4.2 Summarize of the Fitting Results第127-129页
    5.5 Summary and Outlook第129-131页
Chapter 6 Summary and Discussion第131-135页
References第135-147页
致谢第147-149页
Publications第149-151页

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