Anomalous circular bulk photovoltaic effect in BiFeO₃ thin films with stripe-domain pattern.

ABSTRACT: Multiferroic bismuth ferrite, BiFeO₃, offers a vast landscape to study the interplay between different ferrroic orders. Another aspect which is equally exciting, and yet underutilized, is the possibility of large-scale ordering of domains. Along with symmetry-driven bulk photovoltaic effect, BiFeO₃ presents opportunities to conceptualize novel light-based devices. In this work, we investigate the evolution of the bulk photovoltaic effect in BiFeO₃ thin films with stripe-domain pattern as the polarization of light is modulated from linear to elliptical to circular. The open-circuit voltages under circularly polarized light exceed ± 25 V. The anomalous character of the effect arises from the contradiction with the analytical assessment involving tensorial ana

SUBMITTER: Knoche DS 

PROVIDER: S-EPMC7804139 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature