Understanding Ferroelectricity in Hafnia Through Modeling and Simulations

Presentations

• Multi-order parameter coupling and phase identification in hafnia

  ORAL · Invited

  March 4, 2024, 3:00 PM – March 4, 2024, 3:36 PM

  Publication: Zhou, S., Zhang, J. and Rappe, A.M., 2022. Strain-induced antipolar phase in hafnia stabilizes robust thin-film ferroelectricity. Science Advances, 8(47), p.eadd5953.

  Presenters

  • Andrew M Rappe

    • University of Pennsylvania

  Authors

  • Andrew M Rappe

    • University of Pennsylvania

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• Theoretical discussion of the exotic intrinsic properties of hafnia ferroelectrics

  ORAL · Invited

  March 4, 2024, 3:36 PM – March 4, 2024, 4:12 PM

  Publication: I will present work related to several articles. Most notably:
  - "Piezoelectricity in hafnia", Sangita Dutta, Pratyush Buragohain, Sebastjan Glinsek, Claudia Richter, Hugo Aramberri, Haidong Lu, Uwe Schroeder, Emmanuel Defay, Alexei Gruverman and Jorge Íñiguez, Nature Communications 12, 7301 (2021).
  - "Theoretical approach to ferroelectricity in hafnia and related materials", Hugo Aramberri and Jorge Íñiguez, under review, arXiv:2302.00688.

  Presenters

  • Jorge Iñiguez

    • Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), Avenue des Hauts-Fourneaux 5, L-4362 Esch/Alzette, Luxembourg
    • Luxembourg Inst of Science and Technology

  Authors

  • Jorge Iñiguez

    • Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), Avenue des Hauts-Fourneaux 5, L-4362 Esch/Alzette, Luxembourg
    • Luxembourg Inst of Science and Technology

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• Origin of Zero-Energy-Cost Domain Walls beyond the Flat Phonon Bands

  ORAL · Invited

  March 4, 2024, 4:12 PM – March 4, 2024, 4:48 PM

  Publication: Scale-free ferroelectricity induced by flat phonon bands in HfO2, H.-J.Lee et al., Science 369, 1343 (2020).

  Presenters

  • Jun Hee Lee

    • Ulsan National Institute of Science and Technology

  Authors

  • Jun Hee Lee

    • Ulsan National Institute of Science and Technology

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• Polarization of Ferroelectric Hafnia: Up or Down?

  ORAL · Invited

  March 4, 2024, 4:48 PM – March 4, 2024, 5:24 PM

  Publication: Yao Wu, Yuke Zhang, Jie Jiang, Limei Jiang, Minghua Tang, Yichun Zhou, Min Liao, Qiong Yang, and Evgeny Y. Tsymbal, "Unconventional polarization switching mechanism in (Hf, Zr)O2 ferroelectrics and its implications," Physical Review Letters 131, 226802 (2023).

  Presenters

  • Evgeny Y Tsymbal

    • University of Nebraska - Lincoln

  Authors

  • Evgeny Y Tsymbal

    • University of Nebraska - Lincoln

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• Understanding Ferroelectricity in Hafnia Through Modeling and Simulations

  ORAL · Invited

  March 4, 2024, 5:24 PM – March 4, 2024, 6:00 PM

  Publication: R. Ganser, S. Bongarz, A. von Mach, L. Azevedo Antunes, A. Kersch, Phys. Rev. Applied 18, 054066 (2022) https://doi.org/10.1103/PhysRevApplied.18.054066
  
  P. D. Lomenzo, L. Collins, R. Ganser, B. Xu, R. Guido, A. Gruverman, A. Kersch, T. Mikolajick, U. Schroeder, Advanced Functional Materials, 2303636 (2023), https://doi.org/10.1002/adfm.202303636

  Presenters

  • Richard Ganser

    • University of Applied Sciences Munich

  Authors

  • Richard Ganser

    • University of Applied Sciences Munich

  • Alfred Kersch

    • Hochschule München

  • Luis Azevedo Antunes

    • University of Applied Sciences Munich

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