Identification of a coherent twin relationship from high-resolution reciprocal-space maps.

ABSTRACT: Twinning is a common crystallographic phenomenon which is related to the formation and coexistence of several orientation variants of the same crystal structure. It may occur during symmetry-lowering phase transitions or during the crystal growth itself. Once formed, twin domains play an important role in defining physical properties: for example, they underpin the giant piezoelectric effect in ferroelectrics, superelasticity in ferroelastics and the shape-memory effect in martensitic alloys. Regrettably, there is still a lack of experimental methods for the characterization of twin domain patterns. Here, a theoretical framework and algorithm are presented for the recognition of ferroelastic domains, as well as the identification of the coherent twin relationship using high-resolution reci

SUBMITTER: Gorfman S 

PROVIDER: S-EPMC9062825 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature