Researchers discovered that crystal dislocations in antiferroelectric PbZrO3 thin films generate ordered polar antihedgehog lattices, creating a new defect-engineering approach for polar topologies.

Schematic revealing strain-dependent mechanism transitions (shearing to Orowan looping) across different grains and the resulting evolution of dislocation types and configurations. As the aerospace ...

For decades researchers have studied materials from structures to see why and how they fail. Before catastrophic failure, there are individual cracks or dislocations that form, which are signals that ...