Coherent diffractive imaging of ferroelastic domains in BaTiO3

Posted May 14, 2020
Ferroelastic domains

Edwin Fohtung and coworkers demonstrate an X-ray Bragg coherent diffractive imaging technique to spatially resolve the evolution of nanoscopic ferroelastic needle-like domains in individual BaTiO3 nanocrystals under external pressure. This provides a new paradigm for domain-boundary engineering and potential for nanoscale functional devices aided by pressure-induced structural phase transitions and ferroelectric phase transformation. This work was published in Advanced Electronic Materials and selected for the back cover of the May 2020 issue.