Depletion layers and domain walls in semiconducting ferroelectric thin films.

@article{Xiao2005DepletionLA,
  title={Depletion layers and domain walls in semiconducting ferroelectric thin films.},
  author={Yu Yang Xiao and Vivek B. Shenoy and Kaushik Bhattacharya},
  journal={Physical review letters},
  year={2005},
  volume={95 24},
  pages={247603}
}
Commonly used ferroelectric perovskites are also wide-band-gap semiconductors. In such materials, the polarization and the space-charge distribution are intimately coupled, and this Letter studies them simultaneously with no a priori ansatz on either. In particular, we study the structure of domain walls and the depletion layers that form at the metal-ferroelectric interfaces. We find the coupling between polarization and space charges leads to the formation of charge double layers at the 90… CONTINUE READING
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