Inelastic neutron scattering peak in Zn substituted YBa2Cu3O7
N. Bulut (Koc University)
TL;DR
This paper investigates how nonmagnetic impurities affect neutron scattering in copper oxide layers, showing that impurity scattering can produce a peak in the normal state neutron intensity.
Contribution
It introduces a model calculating impurity-induced scattering effects on neutron intensity, revealing a potential peak formation in the normal state.
Findings
Impurity scattering can generate a peak in neutron scattering intensity.
The peak arises from large momentum transfer processes involving impurities.
The model applies within the random phase approximation.
Abstract
The effects of nonmagnetic impurities on the neutron scattering intensity are studied for a model of the copper oxide layers in the normal state. The contribution to the Q=(pi,pi) neutron scattering intensity from processes involving the scattering of the spin fluctuations from an impurity with large momentum transfers are calculated within the random phase approximation. It is shown that this type of scatterings could lead to a peak in the neutron scattering intensity in the normal state.
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