Table of Contents
1 Introduction
1.1 Iron-Based Superconductor (FeSC)
1.2 Crystal Structure and Magnetic Order of FeSC
1.3 Phase Diagram of FeSC
1.4 Superconducting Property
1.5 Normal State Property
1.6 Aim of This Study
2 Experimental Methods
2.1 Single Crystal Growth
2.2 Transport Measurement
2.3 Magnetization
2.4 X-Ray Diffraction Measurement
2.5 Specific Heat Measurement
2.6 Optical Measurement
3 Electronic Phase Diagram and Superconducting Property of SrFe2(As1-xPx)2
3.1 Introduction
3.2 Annealing Effect
3.3 Structural Analysis
3.4 Transport Measurement
3.5 Magnetic Susceptibility Measurement
3.6 Electronic Phase Diagram
3.7 Specific Heat in Superconducting State
3.8 Summary
4 In-Plane Resistivity Anisotropy of Ba(Fe1-xTMx)22 (TM=Cr, Mn, and Co)
4.1 Introduction
4.2 Resistivity Measurement with Detwinned Crystals
4.3 Hall Effect in Cr and Mn-Ba122
4.4 Relation Between RH and Δρ
4.5 Discussion on the Origin of Resistivity Anisotropy
4.6 Summary
5 Optical Property of Ba(Fe1-xTMx)2As2 (TM=Cr, Mn, and Co)
5.1 Introduction
5.2 Doping Dependence of Optical Spectra
5.3 Fitting of σ(ω) with Drude-Lorentz Model
5.4 Transition Metal Doping Effect on the AFO State
5.5 Magnetic/Non-magnetic Impurity Effect
5.6 Localized Carrier Induced by Mn/Cr-Doping
5.7 Summary
6 Conclusion
6.1 Structural and Superconductivity Property in P-Sr122
6.2 Resistivity Anisotropy in Ba(Fe1-xTMx)2As2 (TM=Cr, Mn, and Co)
6.3 Optical Conductivity in TM-Ba122
6.4 Summary
6.5 Future Work