Emerging disorder in Gd<sub>2</sub>(Ti<sub>1−<i>x</i></sub>Zr<sub><i>x</i></sub>)<sub>2</sub>O<sub>7</sub> pyrochlores matrices for radioactive waste disposal: symmetry lowering <i>versus</i> defect clustering
Armando di Biase, Carlo Castellano, Giorgia Confalonieri, P. Fumagalli, Simone Tumiati, Davide Ceresoli, Marco Scavini
Abstract
The structure of Gd 2 (Ti 1− x Zr x ) 2 O 7 pyrochlores was investigated by means of synchrotron radiation powder diffraction, including pair distribution function analysis, Raman spectroscopy and DFT calculations to shed light on their rich defect chemistry.
Topics & Concepts
Raman spectroscopyMaterials scienceX-ray crystallographySynchrotron radiationDiffractionCrystallographyPowder diffractionChemistryPhysicsNuclear physicsOpticsNuclear materials and radiation effectsAdvanced Condensed Matter PhysicsNuclear Materials and Properties