Dynamics of Magnetic Fluctuations in High-Temperature Superconductors

✍ Scribed by J. M. Tranquada, G. Shirane (auth.), George Reiter, Peter Horsch, Gregory C. Psaltakis (eds.)

• Publisher: Springer US
• Year: 1991
• Tongue: English
• Leaves: 358
• Series: NATO ASI Series 246
• Edition: 1
• Category: Library

✦ Synopsis

This NATO Advanced Research Workshop was held at a time when there was little consensus as to the mechanism for high temperature superconductivity, in the context of a world undergoing major changes in its political alignments and sense of the possibility for the future. It was characterized by generosity in the sharing of our uncertainties and speculations, as was appropriate for both the subject matter and the context. The workshop was organized, of necessity around the experimental work, as is this volume. Where the theoretical work is directly relevant to particular experiments, it is included in the appropriate sections with them. Most of the participants felt strongly that magnetic fluctuations played an important role in the mechanism for high T c, although with the exception of the IlS R work reported by Luke showing results inconsistent with the anyon picture, and the work on flux phases by Lederer, the mechanism remained an issue in the background. A major focus was the phenomenological interpretation of the NMR data.

✦ Table of Contents

Front Matter....Pages i-xii
Antiferromagnetic Spin Fluctuations in Cuprate Superconductors....Pages 1-19
Neutron Scattering Measurements of the Magnetic Excitations of High-Temperature Superconducting Materials....Pages 21-34
Neutron Scattering Study of the Spin Dynamics in YBa 2 Cu 3 O 6+x ....Pages 35-49
Disordered, Low Energy Component of the Magnetic Response in Both Antiferromagnetic and Superconducting Y-Ba-Cu-O Samples....Pages 51-59
Copper and Oxygen NMR Studies on the Magnetic Properties of YBa 2 Cu 3 O 7-y ....Pages 61-71
17 O and 63 Cu NMR Investigation of Spin Fluctuations in High T c Superconducting Oxides....Pages 73-85
Local Hyperfine Interactions of Delocalized Electron Spins: 205 TL Investigations in TL Containing High-T c Superconductors....Pages 87-96
Weak Coupling Analysis of Spin Fluctuations in Layered Cuprates....Pages 97-109
Influence of the Antiferromagnetic Fluctuations on the Nuclear Magnetic Resonance in the CU-O High Temperature Superconductors....Pages 111-122
Microscopic Models for Spin Dynamics in the CuO 2 -planes with application to NMR....Pages 123-125
Recent Topics of μSR Studies on High- T c Systems....Pages 127-137
Recent Results in the Application of μSR to the Study of Magnetic Properties of High- T c Oxides....Pages 139-146
On the Phase Diagram of Bismuth Based Superconductors....Pages 147-157
Raman Scattering from Spin Fluctuations in the Cuprates....Pages 159-167
Electronic Structure of Bi 2 Sr 2 CaCu 2 O 8 Single Crystals at the Fermi Level....Pages 169-173
Calculation of Photoemission Spectra for the t-J Model and the Extended Hubbard Model....Pages 175-187
Microwave Absorption of Superconductors in Low Magnetic Fields....Pages 189-196
Magnetic Properties of a Granular Superconductor....Pages 197-206
Thermodynamic Fluctuations and their Dimensionality in Ceramic Superconductors Out of Transport Properties Measurements....Pages 207-215
Models of High Temperature Superconductors....Pages 217-218
BCS Theory Extended to Anisotropic and Layered High-Temperature Superconductors....Pages 219-231
Correlated Electron Motion, Flux States and Superconductivity....Pages 233-239
Orbital Dynamics and Spin Fluctuations in Cuprates....Pages 241-252
Magnetic Frustration Model and Superconductivity on Doped Lamellar CuO 2 Systems....Pages 253-254
Strong Coupling Regime in the Hubbard Model at Low Densities....Pages 255-259
How Good is the Strong Coupling Expansion of the Two Dimensional Hubbard Model?....Pages 261-265
The Hubbard Model for n≠ 1.0 : New Preliminary Results....Pages 267-273
Exact Microscopic Calculation of Spin Wave Frequencies and Linewidths in the Two-Dimensional Heisenberg Antiferromagnet at Low Temperature....Pages 275-281
Magnetic Excitations in the Disordered Phase of the 2-D Heisenberg Antiferromagnet....Pages 283-293
Exact Diagonalization Studies of Quasiparticles in Doped Quantum Antiferromagnets....Pages 295-305
Copper Spin Correlations Induced By Oxygen Hole Motion....Pages 307-318
Spin Polarons in the t - J Model....Pages 319-327
Analytic Evaluation of the 1-Hole Spectral Function for the 1-D t - J Model in the Limit J → 0....Pages 329-334
Doping Effects on the Spin-Density-Wave Background....Pages 335-346
Phase Separation in a t - J Model....Pages 347-355
Spiral Magnetic Phases as a Result of Doping in High Tc Compounds....Pages 357-365
Back Matter....Pages 367-370

✦ Subjects

Solid State Physics;Spectroscopy and Microscopy;Condensed Matter Physics;Crystallography