Diffuse neutron scattering in relaxor ferroelectric PbMg1/3Nb2/3O3
Sergey Vakhrushev, Alexandre Ivanov, Jiri Kulda
TL;DR
This study uses high-resolution neutron spin-echo spectroscopy to analyze the static-like diffuse scattering in relaxor ferroelectric PbMg1/3Nb2/3O3, revealing anisotropic and transverse components that are elastic within experimental limits.
Contribution
It provides detailed measurements of the intrinsic width and anisotropic nature of diffuse scattering in relaxor ferroelectrics, advancing understanding of their static-like behavior.
Findings
Diffuse scattering components are elastic within 1 μeV.
Anisotropic and transverse scattering components are observed.
Possible origins of static-like behavior are discussed.
Abstract
High energy resolution neutron spin-echo spectroscopy has been used to measure intrinsic width of diffuse scattering discovered earlier in relaxor ferroelectric crystals. The anisotropic and transverse components of the scattering have been observed in different Brillouin zones. Both components are found to be elastic within experimental accuracy of 1 eV. Possible physical origin of the static-like behavior is discussed for each diffuse scattering contribution.
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