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Structural,Electronic and Magnetic Study of Zirconium-based 2D Materials

ABSTRACT第4-6页
Acknowledgement第7-9页
List of Abbreviations第9-26页
Chapter 1. Introduction第26-57页
    1.1. Introduction第26页
    1.2. 2D Materials第26-27页
    1.3. 2D Transition Metal Dichalcogenides (TMDs)第27-33页
        1.3.1. Atomic and Structural Configuration of TMDs第28-29页
        1.3.2. Layered Structures of 2D TMDs第29-31页
        1.3.3. Classification of 2D TMDs第31-33页
    1.4. Single Crystals Growth of TMDs using Chemical Vapor Transport (CVT)Method第33-36页
        1.4.1. Principles of CVT Method第34页
        1.4.2. Chemical Vapor Transport Method第34-36页
    1.5. First Principle Calculations第36-38页
        1.5.1. Density Functional Theory (DFT)第38页
    1.6. Angle-Resolved Photoemission Spectroscopy (ARPES)第38-42页
        1.6.1. Synchrotron Based ARPES System第41-42页
    1.7. Physical and Electronics Properties of TMDs第42-49页
        1.7.1. Structural, Electronic and Magnetic Properties第42-49页
            1.7.1.1. Magnetism and Magnetic Properties of TMDs第43-45页
                1.7.1.1.1. Types of Magnetism第43-45页
            1.7.1.2. Superconductivity and Charge Density Wave第45-47页
            1.7.1.3. Electrical Properties of TMDs第47-49页
    1.8. Organization of Thesis第49-51页
    1.9. References第51-57页
Chapter 2. Room Temperature Ferromagnetism in Fe-doped Semiconductor ZrS_2Single Crystals第57-78页
    2.1. Introduction第57-58页
    2.2. Experiments and Methods第58-59页
        2.2.1. Single Crystals Growth第58页
        2.2.2. Computational Methods and Detail第58-59页
        2.2.3. Characterizations第59页
    2.3. Results and Discussions第59-70页
        2.3.1. Structures Characterizations第59-64页
        2.3.2. Magnetic Properties and Results第64-70页
    2.4. Summary and Conclusions第70-72页
    2.5. References第72-78页
Chapter 3. Electron doping induced semiconductor to metal transitions in ZrSe_2layers via copper atomic intercalation第78-102页
    3.1. Introduction第78-79页
    3.2. Experiments and Methods第79-81页
        3.2.1. CVT growth of ZrSe_2 and Cu_xZrSe_2 Crystals第79-80页
        3.2.2. Computational Method and Detail第80页
        3.2.3. Material Characterizations第80-81页
    3.3. Results and Discussions第81-95页
        3.3.1. Structural and Morphological Analysis第81-87页
        3.3.2. Electronic and Electrical Properties第87-95页
    3.4. Concluding Remarks第95-97页
    3.5. References第97-102页
Chapter 4. Emergence of conduction band-induced semiconductor-to-metaltransition in ZrSe_2 through Hf substitution第102-123页
    4.1. Introduction第102-103页
    4.2. Experiments and Methods第103-106页
        4.2.1. Preparation of ZrSe_2 and Zr_(1-x)Hf_xSe_2 Single Crystals第103-105页
        4.2.2. DFT Calculations Methods and Detail第105页
        4.2.3. Material Characterizations第105-106页
    4.3. Results and Discussions第106-118页
        4.3.1. Structures Analysis第106-113页
        4.3.2. Transport and Electronic Study of of Zr_(1-x)Hf_xSe_2 in Comparsion withZrSe_2第113-118页
    4.4. Summary第118-119页
    4.5. References第119-123页
Chapter 5. Degenerating of Valence Band Splitting and Band Gap Opening ofZrTe_2 with Se Substitutions第123-151页
    5.1. Introduction第123-125页
    5.2. Experiments and Methods第125-127页
        5.2.1. Growth of ZrTe_2 and ZrTe_(2(1-x))Se_(2x) Single Crystals第125页
        5.2.2. Computational Method and Details第125-126页
        5.2.3. Material Characterizations第126-127页
    5.3. Results and Discussions第127-143页
        5.3.1. Structural and Morphological Analysis第127-136页
        5.3.2. Electronic Study of ZrTe_2 and ZrTe_(2(1-x))Se_(2x) using ARPES Combinedwith DFT Calculations第136-143页
    5.4. Summary第143-145页
    5.5. References第145-151页
Chapter 6. High Temperature Superconductivity and Charge Density Wave in Cr-Intercalated ZrTe_2 and Hf-Substituted ZrTe_2第151-168页
    6.1. Introduction第151-152页
    6.2. Experiments and Methods第152-154页
        6.2.1. Growth of ZrTe_2, Cr_xZrTe_2 and Hf_xZr_(1-x)Te_2 Single Crystals第152-153页
        6.2.2. Material Characterizations第153-154页
    6.3. Results and Discussions第154-164页
        6.3.1. Structural and Morphological Analysis第154-158页
        6.3.2. Superconductivity and Charge Density Wave in Cr-IntercalatedZrTe_2第158-163页
        6.3.3. Superconductivity and Charge Density Wave in Hf-SubstitutedZrTe_2第163-164页
    6.4. Summary第164-166页
    6.5. References第166-168页
Chapter 7. Complete Summary and Future Prospects第168-173页
List of Publications第173-175页

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