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October 23, 2025Chinese Physics Letters

Double Helix of Atomic Displacements in Ferroelectric PbTiO3

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Authors

YHYihao HuSLShi Liu

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Overview

Theoretical analysis reveals a chiral double helix structure in PbTiO3, suggesting enhanced piezoelectric response and potential for complex electronics.

Key Points

  • Giant piezoelectric response is identified at approximately 16 C/m2 in the newly discovered structure.
  • This work utilizes density functional theory to analyze the properties of strain-induced PbTiO3.
  • A novel form of polar order resembling a chiral double helix is established through polarizations of local dipoles.
  • Findings suggest potential applications in advanced materials with complex electromechanical characteristics.

Cite This Study

Hu et al. (2025) studied this question.

synapsesocial.com/papers/68f9a0eb8ea8f2f37ee94c2bhttps://doi.org/10.1088/0256-307x/42/12/120707
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