Functional Nanostructures and Metamaterials for Superconducting Spintronics (eBook)

Anatolie Sidorenko obtained his doctoral degree in 1979 at the Institute for Low Temperatures of Ukrainian Academy of Sciences, Kharkov, and  habilitation degree  in 1991 at the Institute of Applied Physics of Moldavian Academy of Sciences, Chisinau. He is currently Director of the Institute of Electronic Engineering and Nanotechnologies, Chisinau, Moldova. His research interest focus on properties of low dimensional systems, layered nanostructures and hybrids uperconductor/ferromagnet with emphasis on spintronics, superconductivity, transport and magnetic phenomena in functional nanostructures. Anatolie Sidorenko has edited the book “Fundamentals of Superconducting Nanoelectronics” (Springer, 2011) and co-edited “Nanoscale Phenomena – Fundamentals and Applications” (Springer, 2009), he is associate editor of the Beilstein Journal of Nanotechnology.  Anatolie Sidorenko is a member of the Moldavian Academy of Sciences since 2012 and DPG member since 2001.

Foreword 6
Preface 8
Contents 9
Contributors 14
Basic Superconducting Spin Valves 17
1 Introduction 18
2 Superconductor–Metallic Ferromagnet Proximity Effect 20
3 Elementary Superconducting Spin Valve: Diffusive Limit 22
4 Elementary Spin Valve with Strong Ferromagnets 26
4.1 Normal and Inverse Spin Valve Effects in the Elementary Structures 26
4.2 Superconducting Spin Valve Effect and the Domain Structures of Ferromagnets 27
4.3 Theory of Spin Valve in the Clean Limit 30
4.4 Parametric Spin Valve 31
5 Superconducting Spin Valve Effect in the S/F1/N/F2 Structures 35
6 Discussion and Conclusion 38
References 40
Superconducting Triplet Proximity and Josephson Spin Valves 46
1 Introduction 47
2 Superconductor–Ferromagnet Proximity Spin Valves 48
3 Superconducting Spin-Valve Effect in the S/F1/N/F2 Structures 50
4 Josephson Spin Valves with Ferromagnetic Weak Links 55
References 59
Compact Josephson ?-Junctions 63
1 Introduction 64
2 Model 66
3 Ramp- and Overlap-Type Geometries 69
4 Discussion and Conclusion 81
References 83
Magnetic Proximity Effect and Superconducting Triplet Correlations at the Heterostructure of Cuprate Superconductor and Oxide Spin Valve 86
1 Introduction 87
2 Experimental 88
3 Magnetic Proximity Effect 90
4 Superconducting Triplet Correlations 95
5 Conclusion 100
References 101
Nanodevices with Normal Metal—Insulator—Superconductor Tunnel Junctions 104
1 Introduction: The NIS Junction at a Glance 105
2 Fabrication Technology 106
3 Terahertz Band Conventional SINIS Bolometer 108
4 Mechanisms of Energy Relaxation and Time Scale 113
5 Electron Cooling of Absorber and Overheating of Superconductor 118
6 NIS Thermometer 120
7 Andreev Current and Hot Electron Traps 122
8 Current Response, Quantum Efficiency, and Thermalization 126
9 Conclusion 127
References 128
Multichroic Polarization Sensitive Planar Antennas with Resonant Cold-Electron Bolometers for Cosmology Experiments 130
1 Introduction. ESA Requirements 130
2 Seashell Antenna 131
3 Cross-Slot Antenna 134
4 Comparison and Discussion 138
References 139
Passive Millimeter-Wave Imaging Technology for Concealed Contraband Detection 141
1 Introduction 141
2 Theory of Passive Millimeter-Wave Imaging 142
2.1 Planck’s Radiation Law–Blackbody Radiation Detection Theory 143
2.2 Radiation Temperature Transfer Model of the Passive Millimeter-Wave Near-Field Imaging 146
3 Millimeter-Wave Radiometer 147
3.1 Key Technical Parameters of Millimeter-Wave Radiometer 147
3.2 Millimeter-Wave Direct Detection Radiometer 149
3.3 Calibration Method for the Radiometer Array Adopted in the Passive Millimeter-Wave Imaging System 151
4 Passive Millimeter-Wave Near-Field Imaging Feed Antenna 153
5 Quasi-optical Theory and Focusing Antenna for Passive Millimeter-Wave Near-Field Imaging 158
5.1 Quasi-optics Design Method 158
5.2 The Design of the Optical System Parameters 160
5.3 Design of Lens Curvature 161
6 Passive Millimeter-Wave Near-Filed Imaging System 164
6.1 20-Channel FPA System for Hidden Object Detection Under Human Clothing 165
6.2 High Spatial Resolution 70-Channel FPA System for Concealed Object Detection Under Human Clothing 166
References 170
Coupled Spin and Heat Transport in Superconductor Hybrid Structures 172
1 Introduction 172
2 Nonlocal Spin Transport 173
3 Spin-Dependent Thermoelectric Effects 175
4 Possible Applications 179
4.1 Thermometry 179
4.2 Cooling 181
5 Conclusion and Outlook 183
References 183
Lasing in Circuit Quantum Electrodynamics 186
1 Introduction 186
2 Requirements for Lasing 187
3 Circuit QED with Superconducting Quantum Systems 189
4 Lasing by Single Superconducting Artificial Atoms 193
4.1 Standard Lasing Scheme 193
4.2 Dressed-State Lasing 194
4.3 Landau–Zener–Stückelberg Lasing 200
5 Summary and Conclusion 203
References 204
Topology-Driven Effects in Advanced Micro- and Nanoarchitectures 206
1 Introduction 207
2 Topologic Effects in Quantum Rings by Virtue of Doubly Connectedness 208
3 Topologic Effects in Möbius Rings 211
4 Superconducting Vortices: Topological Defects in Micro- and Nanoarchitectures 217
5 Topologic States of Light in Microcavities 222
5.1 Resonant Modes of Light in a Möbius-Ring Resonator 222
5.2 Optical Spin–Orbit Coupling and Non-Abelian Evolution of Light in Asymmetric Microcavities 224
5.3 Non-Abelian Evolution of Light Polarization 225
6 Conclusions 228
References 229
Functional Magnetic Metamaterials for Spintronics 232
1 Introduction 233
2 Spin Waves in Width-Modulated Magnonic Crystal 235
3 Defect Spin-Wave Modes Coupling in Magnonic Crystals 239
4 Multimode Surface Magnetostatic Wave Propagation in Irregular Planar Magnonic Structure 244
5 Transverse Mode Coupling in Confined Multiferroics 250
6 Conclusion 254
References 255
Quantum Transport, Superconductivity, and Weak Ferromagnetism at Bicrystal Interfaces of Bi and 3D Topological Insulator BiSb 257
1 Introduction 258
2 Samples and Experimental Procedure 260
3 Results and Discussion 261
3.1 Fermi Surface Rearrangement in Bi and Bi1–xSbx (x?lt?0.18) Bicrystals 261
3.2 High-Field Quantum Transport in Bi and BiSb Bicrystals 264
3.3 Superconductivity and Weak Ferromagnetism at the Interface of Bicrystals of Bi and 3D Topological Insulator BiSb 266
4 Conclusions 272
References 272
Index 274