Hierarchical ferroelectric and ferrotoroidic polarizations coexistent in nano-metamaterials.

ABSTRACT: Tailoring materials to obtain unique, or significantly enhanced material properties through rationally designed structures rather than chemical constituents is principle of metamaterial concept, which leads to the realization of remarkable optical and mechanical properties. Inspired by the recent progress in electromagnetic and mechanical metamaterials, here we introduce the concept of ferroelectric nano-metamaterials, and demonstrate through an experiment in silico with hierarchical nanostructures of ferroelectrics using sophisticated real-space phase-field techniques. This new concept enables variety of unusual and complex yet controllable domain patterns to be achieved, where the coexistence between hierarchical ferroelectric and ferrotoroidic polarizations establishes a new benchmark f

SUBMITTER: Shimada T 

PROVIDER: S-EPMC4589792 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature