Non-equilibrium response in high temperature superconductorsPDF电子书下载

Chapter 1 Introduction 1

1.1 High temperature superconducting thin film and device application 1

1.2 Aim of the research describe in thist thesis 3

1.3 Structure of the thesis 5

1.4 High-TC oxide superconductors temperature 6

1.5 Aspectof superconductivity relatedtothe radiation response 13

Chapter 2 Fundmental of Superconducting Optical and Microwave Response 23

2.1 Introduction 23

2.2 Response performance parameters 24

2.3 Response in the bolometric(thermal)mode 28

2.4 Response in the nonbolometric mode 31

Chapter 3 Optical Response of High-Te Superconductor 38

3.1 Introduction 38

3.2 Photoresponse of T1BaCaCuO epitaxial thin films 42

3.3 Optical response of granular YBCO weak link below the transition temperature 50

3.4 Possibility of nonbolometric response 57

3.5 Conclusion 68

Chapter 4 Microwave Response of YBa2Cu3O7-δ Granular Thin Films UnderMagnetic Fields 70

4.1 Introduction 70

4.2 Experimental Detail 73

4.3 Experimental results 74

4.4 The current-voltage(I-V)characteristics 81

4.5 Discussion 85

4.6 Conclusion 86

Chapter 5 Low Temperature Optical and Microwave Response of Granular Josephson Junctions 88

5.1 Introduction 88

5.2 Experimental details 89

5.3 Junction response 97

5.4 Conclusion 100

Chapter 6 Modeling and Analysis of Thin Film Response 103

6.1 Assessment of microwave response 103

6.2 Model development 107

6.3 Conclusion 118

Chapter 7 Summary 120

7.1 Conclusion 120

7.2 Future work 122

Appendix A 124

Thermal responseofa coposite bolometer 124

Appendix B 134

Derivation of Energy Gap as a Function of Temperature and Excess Quasiparticles 134

Appendix C 138

Derivation of Steady-State Qusiparticle Density Equation 138

References 141

Acknowledgments 149