Magnetic and Charge Fluctuations in High-$T_c$ Superconductors
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Neutron scattering has been used to study the spin fluctuations in the YBa$_2$Cu$_3$O$_{7-x}$ and Bi$_2$Sr$_2$CaCu$_2$O$_8$ materials. Evidence is found for both incommensurate fluctuations and a commensurate resonance excitation. Measurements on the lattice dynamics for YBa$_2$Cu$_3$O$_{6.6}$ show incommensurate structure that appears to stem from charge fluctuations that are associated with the spin fluctuations.
9 pages,LaTeX, 4 figures, proceedings of the 2nd international conference on stripes and High-Tc superconductivity
9 pages,LaTeX, 4 figures, proceedings of the 2nd international conference on stripes and High-Tc superconductivity