超导中的纳米科学和工程：英文影印版=Nanoscience and Engineering in SuperconductivetyPDF|Epub|txt|kindle电子书版本网盘下载

超导中的纳米科学和工程：英文影印版=Nanoscience and Engineering in SuperconductivetyPDF格式电子书版下载

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1 Guided Vortex Motion and Vortex Ratchets in Nanostructured Superconductors&Alejandro V.Silhanek,Joris Van de Vondel,and Victor V.Moshchalkov1

1.1 Introduction1

1.2 Equation of Motion2

1.3 Guided Vortex Motion5

1.3.1 Transverse Electric Field and Guided Vortex Motion5

1.3.2 Expenmental Results and Theoretical Investigations6

1.4 Ratchets11

1.4.1 Basic Ingredients13

1.4.2 Experimental Considerations13

1.4.3 Experimental Results and Theoretical Investigations15

1.5 Conclusion20

References21

2 High-Tc Films:From Natural Defects to Nanostructure Engineering of Vortex Matter&Roger W？rdenweber25

2.1 Introduction25

2.2 Vortex Matter in High-Tc Superconductors29

2.2.1 Vortex Motion in Ideal Superconductors29

2.2.2 Flux Pinning and Summation Theories30

2.2.3 Pinning Mechanism in HTS35

2.3 Vortex Manipulation in HTS Films35

2.3.1 Vortex Manipulation via Artificial Structures36

2.3.2 Theoretical Considerations of Vortex Manipulation via Antidots39

2.3.3 Experimental Demonstration45

2.4 Vortex Matter in Superconducting Devices56

2.4.1 Low-Frequency Noise in SQUIDs58

2.4.2 Vortex Matter in Microwave Devices66

2.5 Conclusions74

References75

3 Ion Irradiation of High-Temperature Superconductors and Its Application for Nanopatterning&Wolfgang Lang and Johannes D.Pedarnig81

3.1 Introduction81

3.2 Defect Creation by Ion Irradiation83

3.2.1 Methods83

3.2.2 Ion Species84

3.2.3 Ion Energy Dependence85

3.2.4 Angle Dependence88

3.2.5 Experimental Results89

3.3 Electrical Properties after Ion Irradiation90

3.3.1 Brief Review90

3.3.2 Experimental Techniques91

3.3.3 Resistivity91

3.3.4 Hall Effect93

3.3.5 Long-term Stability96

3.4 Nano-patterning by Masked Ion Beam Irradiation98

3.4.1 Previous Attempts to Nanopatterning of HTS98

3.4.2 Computer Simulation Results99

3.4.3 Experimental Patterning Tests100

3.5 Conclusions and Outlook101

References102

4 Frontiers Problems of the Josephson Effect:From Macroscopic Quantum Phenomena Decay to High-Tc Superconductivity&Antonio Barone,Floriana Lombardi,and Francesco Tafuri105

4.1 Introduction105

4.2 Grain Boundary Junctions:The Tool106

4.3 Retracing d-wave Order Parameter Symmetry in Josephson Structures110

4.4 Macroscopic Quantum Phenomena in Josephson Systems:Fundamentals and Low Critical Temperature SuperconductorJunctions114

4.4.1 Resistively and Capacitively Shunted Junction Model and the"Washboard"Potential114

4.4.2 Macroscopic Quantum Tunnelling(MQT) and Energy Level Quantization(ELQ)116

4.4.3 Developments of Quantum Measurements for Macroscopic Quantum Coherence Experiments118

4.5 Macroscopic Quantum Effects in High-Tc Josephson Junctions and in Unconventional Conditions120

4.5.1 Macroscopic Quantum Phenomena in High-Tc Josephson Junctions120

4.5.2 Switching Current Statistics in Moderately Damped Josephson Junctions125

4.5.3 MQT Current Bias Modulation126

4.6 Mesoscsopic Effects and Coherence in HTS Nanostructures127

4.7 Conclusions129

References130

5 Intrinsic Josephson Tunneling in High-Temperature Superconductors&A．Yurgens and D.Winkler137

5.1 Introduction137

5.2 Sample Fabrication140

5.2.1 Simple Mesa140

5.2.2 Flip-Chip Zigzag Bridges141

5.2.3 Other Methods142

5.3 Electrical Characterization143

5.3.1 I-V Curves of Intrinsic Josephson Junctions in Bi2212143

5.3.2 Critical Current Density of Individual CuO Plane144

5.3.3 Superconducting Critical Current of Individual CuO Planes in Bi2212144

5.3.4 Tunneling Spectroscopy149

5.3.5 THz Radiation152

5.3.6 Joule Heating in Mesas155

5.3.7 The C-Axis Positive and Negative Magneto-Resistance in a Perpendicular Magnetic Field157

5.4 Summary159

References159

6 Stacked Josephson Junctions&S.Madsen,N.F.Pedersen,and P.L.Christiansen163

6.1 Introduction163

6.2 Model163

6.2.1 Numerical Method168

6.2.2 Analytic Solutions169

6.3 Bunching of Fluxons170

6.3.1 Bunching due to Coupling Between Equations170

6.3.2 Bunching due to Boundary Conditions175

6.3.3 External Microwave Signal178

6.3.4 External Cavity179

6.4 Experimental Work184

6.5 Summary185

References185

7 Point-Contact Spectroscopy of Multigap Superconductors&P.Samuely,P.Szabó,Z.Pribulová,and J.Ka？mar？k187

7.1 Point-Contact Andreev Reflexion Spectroscopy188

7.2 Two Gaps in MgB2 and Doped MgB2 Systems189

7.2.1 MgB2189

7.2.2 Aluminum and Carbon-Doped MgB2195

7.3 Multiband Superconductivity in the 122-type Iron Pnictides203

7.4 Conclusions208

References208

8 Nanoscale Structures and Pseudogap in Under-doped High-Tc Superconductors& M.Saarela and F.V.Kusmartsev211

8.1 Introduction211

8.2 Microscopic Origin of Two Types of Charge Carriers214

8.3 Pseudogap and Two Types of Charge Carriers220

8.4 Nanostructures in STM Measurements225

8.5 Conclusions228

References228

9 Scanning Tunneling Spectroscopy of High Tc Cuprates&Ivan Maggio-Aprile,Christophe Berthod,Nathan Jenkins,Yanina Fasano,Alexandre Piriou,and ？ystein Fischer231

9.1 Introduction231

9.2 Basic Principles of the STM/STS Technique232

9.2.1 Operating Principles232

9.2.2 Topography233

9.2.3 Local Tunneling Spectroscopy234

9.2.4 STS of Superconductors235

9.3 Spectral Characteristics of HTS Cuprates236

9.3.1 General Spectral Features of HTS Cuprates236

9.3.2 Superconducting Gap and Pseudogap238

9.4 Revealing Vortices and the Structure of their Cores by STS240

9.4.1 Vortex Matter in Conventional Superconductors241

9.4.2 Vortex Matter in HTS242

9.4.3 Electronic Structure of the Cores243

9.5 Local Electronic Modulations seenby STM246

9.5.1 Local Modulations of the Superconducting Gap247

9.5.2 Local Modulations of the DOS249

9.5.3 Summary251

References252

10 Scanning Tunnelling Spectroscopy of Vortices with Normal and Superconducting tips&J.G.Rodrigo,H.Suderow,and S.Vieira257

10.1 Introduction257

10.2 Experimental:Low Temperature STM with Superconducting tips259

10.2.1 Low Temperature STM259

10.2.2 Tips Preparation and Characterization260

10.2.3 Spectroscopic Advantages of Superconducting tips262

10.3 Vortices Studied by STS265

10.3.1 The Vortex Lattice:General Properties and Visualization265

10.3.2 NbSe2 Studied with Normal and Superconducting tips266

10.3.3 NbSe2 vs.NbS2269

10.3.4 The Vortex Lattice in thin Films:A 2D Vortex Lattice271

10.4 Other Scenarios for the Interplay of Magnetism and Superconductivity273

10.5 Summary and Prospects277

References278

11 Surface Superconductivity Controlled by Electric Field&Pavel Lipavsk？,Jan Kolá？ek,and Klaus Morawetz281

11.1 Introduction281

11.2 Limit of Large Thomas-Fermi Screening Length282

11.3 de Gennes Approach to the Boundary Condition284

11.4 Link to the Limit of Large Screening Length287

11.5 Electric Field Effect on Surface Superconductivity289

11.5.1 Nucleation of Surface Superconductivity289

11.5.2 Solution in Dimensionless Notation290

11.5.3 Surface Energy293

11.6 Magneto-capacitance294

11.6.1 Discontinuity in Magneto-capacitance295

11.6.2 Estimates of Magnitude295

11.7 Summary296

References297

12 Polarity-Dependent Vortex Pinning and Spontaneous Vortex-AntivOrtex Structures in Superconductor/Ferromagnet Hybrids&Simon J.Bending,Milorad V.Milo？evi？,and Victor V.Moshchalkov299

12.1 Introduction299

12.2 Theoretical Description of F-S Hybrids300

12.2.1 Ginzburg-Landau Theory300

12.2.2 London Theory304

12.3 Experimental Results307

12.3.1 Scanning Hall Probe Imaging307

12.3.2 Low Moment Dot Arrays with Perpendicular Magnetisation308

12.3.3 High Moment Dot Arrays with Perpendicular Magnetisation311

12.3.4 High Moment Arrays with In-Plane Magnetisation315

12.4 Conclusions320

References321

13 Superconductor/Ferromagnet Hybrids:Bilayers and Spin Switching&J.Aarts,C.Attanasio,C.Bell,C.Cirillo,M.Flokstra,and J.M.v.d.Knaap323

13.1 Introduction323

13.2 Some History of the Field324

13.3 Sample Preparation and Ferromagnet Characteristics327

13.4 Interface Transparency329

13.5 Domain Walls in S/F Bilayers333

13.5.1 Domain Walls in Nb/Cu43Ni57334

13.5.2 Domain Walls in Nb/Py336

13.6 On the Superconducting Spin Switch339

13.6.1 Spin Switch Efiects with CuNi340

13.6.2 Spin Switch Effects with Py341

13.7 Concluding Remarks343

References345

14 Interplay Between Ferromagnetism and Superconductivity&Jacob Linder and Asle Sudb ？349

14.1 Introduction349

14.2 Artifical Synthesis:F｜S Hybrid Structures351

14.2.1 Basic Physics351

14.2.2 Quasiclassical Theory355

14.2.3 F｜S Bilayers361

14.2.4 S｜F｜S Josephson Junctions365

14.2.5 F｜S｜F Spin-valves369

14.2.6 Future Prospects373

14.3 Intrinsic Coexistence:Ferromagnetic Superconductors374

14.3.1 Experimental Results374

14.3.2 Phenomenological Framework376

14.3.3 Probing the Pairing Symmetry383

14.3.4 Future Prospects384

References385

Index389