TL;DR
This paper calculates the anomalous NMR relaxation rate of copper nuclei in copper-oxide metals, linking it to orbital magnetic fluctuations and predicting experimental signatures for neutron scattering.
Contribution
It introduces a theoretical calculation of the anomalous NMR relaxation rate based on orbital magnetic fluctuations, explaining transport anomalies in copper-oxide metals.
Findings
Predicted frequency and momentum dependence of fluctuations
Identified absence of anomalous contribution at certain lattice sites
Provided verifiable predictions for neutron scattering experiments
Abstract
The anomalous part of the NMR relaxation rate of coppernuclei in the normal state of copper-oxide metals is calculated using the orbital magnetic parts of the fluctuations derived in a recent theory to explain the long wavelength transport anomalies. Oxygen and Yttrium reside on lattice sites at which the anomalous contribution is absent at all hole densities. The frequency, momentum dependence, and the form-factor of the fluctuations is predicted,which is verifiable by inelastic neutron scattering experiments.
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