ISIS Neutron and Muon Source Data Journal

Local Structure in PMN Relaxors from Neutron Total-Scattering and X-ray Single-Crystal Diffuse-Scattering Data

Abstract: This experiment seeks to resolve an ambiguity surrounding the structure of a prototypical relaxor ferroelectric Pb(Mg1/3Nb2/3)O3 (PMN). Relaxors have been studied extensively for nearly 60 years. Despite all the efforts, the nanoscale structure of these materials remains elusive. In particular, for PMN, several distinct models have been proposed (e.g., polar nanoregions vs glass-like dipole network) and the debate is ongoing. We intend to address this problem by exploiting recent advances in structural refinements using multiple types of data. Local atomic displacements and their correlations will be determined using simultaneous fitting of the neutron total-scattering and X-ray single-crystal diffuse-scattering data in the RMCProfile software. The goal of the proposed measurements is to provide the neutron total-scattering data for this study.

Principal Investigator: Dr Igor Levin
Experimenter: Dr Helen Playford

DOI: 10.5286/ISIS.E.RB1620101

ISIS Experiment Number: RB1620101

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Igor Levin et al; (2016): Local Structure in PMN Relaxors from Neutron Total-Scattering and X-ray Single-Crystal Diffuse-Scattering Data, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620101

Data is released under the CC-BY-4.0 license.