Octahedral oxide glass network in ambient pressure neodymium titanate.

ABSTRACT: Rare-earth titanates form very fragile liquids that can be made into glasses with useful optical properties. We investigate the atomic structure of 83TiO₂-17Nd₂O₃ glass using pair distribution function (PDF) analysis of X-ray and neutron diffraction with double isotope substitutions for both Ti and Nd. Six total structure factors are analyzed (5 neutron + 1 X-ray) to obtain complementary sensitivities to O and Ti/Nd scattering, and an empirical potential structure refinement (EPSR) provides a structural model consistent with the experimental measurements. Glass density is estimated as 4.72(13) g cm^-3, consistent with direct measurements. The EPSR model indicates nearest neighbor interactions for Ti-O at [Formula: see text] = 1.984(11) Å with coor

SUBMITTER: Wilke SK 

PROVIDER: S-EPMC9117677 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature