Neutron Scattering Studies of the Magnetic Fluctuations in YBa2Cu3O7-δ
Abstract
Neutron scattering measurements have been made on the spin fluctuations in YBa2Cu3O7-δ for different oxygen doping levels. Incommensurability is clearly observed for oxygen concentrations of 6.6 and 6.7 and is suggested for the 6.93. Measurements of the resonance for the O6.6 concentration show that it exists in a broadened and less intense form at temperatures much higher than Tc.
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