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http://dx.doi.org/10.25673/110705
Titel: | Anomalous circular bulk photovoltaic effect in BiFeO3 thin films with stripe-domain pattern |
Autor(en): | Knoche, David S. Steimecke, Matthias Yun, Yeseul Mühlenbein, Lutz Bhatnagar, Akash |
Erscheinungsdatum: | 2021 |
Art: | Artikel |
Sprache: | Englisch |
Zusammenfassung: | 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 analysis. The assessment highlights the need for a domain-specific interaction of light which is further analyzed with spatially-resolved Raman measurements. Appropriate positioning of electrodes allows observation of a switch-like photovoltaic effect, i.e., ON and OFF state, by changing the helicity of circularly polarized light. |
URI: | https://opendata.uni-halle.de//handle/1981185920/112660 http://dx.doi.org/10.25673/110705 |
Open-Access: | ![]() |
Nutzungslizenz: | ![]() |
Journal Titel: | Nature Communications |
Verlag: | Nature Publishing Group UK |
Verlagsort: | [London] |
Band: | 12 |
Originalveröffentlichung: | 10.1038/s41467-020-20446-z |
Seitenanfang: | 1 |
Seitenende: | 8 |
Enthalten in den Sammlungen: | Open Access Publikationen der MLU |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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s41467-020-20446-z.pdf | 972.05 kB | Adobe PDF | ![]() Öffnen/Anzeigen |