The Superconducting State in Magnetic Fields: Special Topics and New Trends

by Sa De Melo, Carlos A. R.

• ISBN13: 9789810233747
• ISBN10: 9810233744
• Format: Hardcover
• Copyright: 1998-09-01
• Publisher: WORLD SCIENTIFIC PUB CO INC

Summary

Modern Historiographyis the essential introduction to the history of historical writing. It explains the broad philosophical background to the different historians and historical schools of the modern era. In a unique overview of modern historiography, the book includes surveys on the Enlightenment and Counter Enlightenment; Romanticism; the voice of Science and the process of secularization within Western intellectual thought; the influence of, and broadening contact with, the New World; theAnnalesschool in France; and the effects of the repression and exile of the inter-war years and the Post-War 'moods.'Modern Historiographyprovides a clear and concise account of this modern period of historical writing.

Table of Contents

Magnetic Flux in Interfaces in YBCO	p. 1
Introduction	p. 1
Scanning SQUID Microscopy	p. 2
Twin Boundaries	p. 3
Bicrystal Grain Boundaries	p. 8
Polygon Grain Boundaries	p. 12
Summary	p. 16
References	p. 17
The Symmetry of the Superconducting Order Parameter and Low-Field Magnetic Properties in High-Temperature Superconductors	p. 19
Introduction	p. 19
Phenomenological Description	p. 22
Frustraton Effects	p. 25
Broken Time-Reversal Symmetry at Twin Boundaries	p. 29
Inhomogeneous Josephson Functions	p. 34
Conclusion	p. 36
References	p. 37
The Vortex Phase Transition in YBa[subscript 2]Cu[subscript 3]O[subscript 7-delta]	p. 41
Introduction	p. 41
Thermodynamic Evidence	p. 43
Low Current Transport Evidence	p. 46
Connections between Thermodynamic and Dynamic Measurements	p. 53
Conclusion	p. 54
References	p. 55
Numerical Simulations of Magnetic Properties of High-Temperature Superconductors	p. 57
Introduction	p. 57
Selective Review of Previous Work	p. 59
Models	p. 59
Melting and Dynamics of Flexible Lines	p. 63
XY Model: 0 [less than or equal] j [less than or equal] 1/6	p. 66
Simulated Local Magnetization Dump	p. 71
Discussion	p. 74
References	p. 75
Quantum Melting and Quantum Creep of Vortex Matter in Thin Films of a-Nb[subscript 3]Ge	p. 78
Introduction	p. 78
Experimental	p. 79
Results and Discussion	p. 79
Conclusions	p. 92
References	p. 92
Quantum Liquid of Vortices in Superconductors at T = 0	p. 94
Introduction	p. 94
Quantum Fluctuations and Topological Melting	p. 95
The Lindemann Criterion	p. 96
Mean Squared Displacement	p. 99
Condition of the Vortex Quantum Liquid	p. 100
Conclusions	p. 105
References	p. 105
Vortex Lattice Structure in LuNi[subscript 2]B[subscript 2]C	p. 107
Introduction	p. 107
Vortex Imaging with a Scanning Tunneling Microscope	p. 109
Square Vortex Lattice in LuNi[subscript 2]B[subscript 2]C	p. 110
Summary	p. 123
References	p. 124
Vortex Lattice Transitions	p. 127
Introduction	p. 127
London Equations Corrected for Nonlocality	p. 129
Microscopic Theory and London Approach	p. 133
Cubic Materials	p. 137
Borocarbides	p. 141
Mean Field Approach to VL Transitions	p. 145
Discussion	p. 147
High Frequency Electrodynamics of Cuprate Superconductors in the Vortex State	p. 150
Introduction and Overview	p. 150
Zero-Field Response	p. 151
Electrodynamic Response in a Strong Magnetic Field	p. 153
Comparison with Experimental Data	p. 158
Comparison with YBCO	p. 168
Conclusions	p. 172
References	p. 173
De Haas-Van Alphen Effect in the Vortex State of Type-II Superconductors	p. 175
Introduction	p. 175
The de Haas-van Alphen Effect	p. 177
Field Inhomogeneity in the Vortex State	p. 178
Experimental Techniques	p. 179
Experimental Results	p. 180
Discussion	p. 189
Conclusions	p. 172
References	p. 173
Quantized Landau Levels in Superconductors	p. 197
Introduction	p. 175
Quasiparticle Spectrum of Extreme Type-II Superconductors	p. 201
Physical Properties of Gapless Superconductors	p. 210
dHvA Effect in the Mixed State at High Magnetic Fields	p. 214
Conclusion	p. 222
References	p. 223
Vortex Lattice Imaging and Spectroscopic Studies of Flux Lines by Scanning Tunneling Microscopy	p. 226
Introduction	p. 226
Theoretical and Experimental Aspects	p. 228
Real Space Vortex Lattice Imaging	p. 231
Vortex Core Spectroscopy	p. 235
Summary and Outlook	p. 239
References	p. 241
Vortex Structure in Clean Type II Superconductors with s-wave and d-wave Pair Symmetries	p. 245
Introduction	p. 245
Quasi-Classical Theory	p. 246
Bogoliubov-de Gennes Theory--Quantum Limiting Behaviors	p. 265
Conclusion and Outlook	p. 268
References	p. 268
Superconductivity in Quasi-One-Dimensional Molecular Conductors (TMTSF)[subscript 2]X	p. 272
Introduction	p. 272
Superconductivity in (TMTSP)[subscript 2]X, X = ClO[subscript 4]	p. 276
Superconductivity in (TMTSF)[subscript 2]X, X = PF[subscript 6]	p. 286
References	p. 294
Singlet Versus Triplet Superconductivity in Quasi-One-Dimensional Systems: Magnetic Field Effects	p. 296
Introduction	p. 296
Background	p. 297
Quasi-One-Dimensional Systems	p. 299
Superconductivity in a Magnetic Field	p. 305
Theoretical Digression: New Possibilities	p. 316
Concluding Remarks	p. 322
References	p. 322
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