Journal
PHYSICAL REVIEW B
Volume 106, Issue 22, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.106.224110
Keywords
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Funding
- AEI (Spanish Government) [PGC2018-099158-B-I00, PID2020-114192RB-C41]
- Sao Paulo Research Foundation FAPESP [2017/17872-1, 2022/08030-5]
- Brazilian CNPq [304144/2021-5]
- Becas Iberoamerica Santander Investigacion 2020-2021 program
- Comunidad de Madrid through the Doctorados Industriales project [IND2020/IND-17375]
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This study develops a phenomenological model predicting the motion of charged domain walls (CDWs) and proposes a photoinduced electronic reconstruction mechanism as the primary absorption mechanism. Domain wall motion is then driven by the energetic difference between domains in a CDW array, allowing for easy tuning of macroscopic polarization.
Light-induced ferroelectric domain wall motion turns out to be a promising phenomenon to develop new photocontrolled devices. However, the physical origin of this light-matter coupling when material is irradiated with visible light remains unclear. Here, a phenomenological model predicting the motion of charged domain walls (CDWs) is developed. The photoinduced electronic reconstruction mechanism is proposed as the primary absorption mechanism, leading to a linear dependence for the polarization perturbation with the light intensity. Domain wall motion is then driven by the energetic difference between domains in a CDW array, such that the macroscopic polarization can be easily tuned.
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