Electrodynamics of High-temperature Superconductors

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World Scientific, 1993 - Technology & Engineering - 247 pages
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These lectures are concerned with the application of high temperature superconductors to both passive and active high-frequency devices.The central issue addressed is the electrodynamics of granular superconductors, particularly where grain boundaries (either natural or synthetic) act as Josephson weak-links. Grain boundaries are responsible for residual dissipation and for unwanted dependence of the electromagnetic properties on ambient magnetic fields and on elevated power level. Properly controlled, similar weak-links are the key to high sensitivity dc and rf SQUIDS at readily accessible temperatures, and to modulators, mixers and detectors. Such structures may conveniently lead to superconductive electronic devices as well as coherent sources of radiation in the very far infrared.
 

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Contents

Electrodynamics
37
Superconducting Phase and Flux Quanta
49
Magnetic Resonance and Relaxation
65
Flux Pinning Creep and Flow
81
Film Transmission Lines and Resonators
99
Waveguides and Cavity Resonators
111
Electrodynamics of Type II Superconductivity
129
C J Gorlcr and H B G Casimir Phys Z 35 963 1934
132
Josephson Electrodynamics
145
Granular Superconductivity
159
Electrodynamics of Intergranular Junctions
175
Microwave Absortion in Transient Magnetic Fields
189
Nonlinear Microwave Electrodynamics
205
Microwave Processes and Quantum Interference
223
Subject Index 241247
241
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