Giant enhancement of ferroelectric retention in BiFeO3 mixed-phase boundary.
basic_science · Level V
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- Record sourced from PubMed, PMID 25113412.
- Also identified by DOI 10.1002/adma.201402442.
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Abstract
A large enhancement of nanodomain retention is shown in the mixed-phase region of a strained BiFeO3 epitaxial film. The superior ferroelectric retention is attributed to a lower elastic-energy density at the phase boundaries, which act as periodic pinning centers for the domain wall motion. This study delivers a new pathway of incorporating an elastic-energy term to assist ferroelectric retention.