Electrodynamics of ferroelectric films with negative capacitance
- Univ. of Picardie, Amiens (France). Lab. of Condensed Matter Physics; Landau Inst. for Theoretical Physics, Chernogolovka (Russia)
- Univ. of Picardie, Amiens (France). Lab. of Condensed Matter Physics
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
We construct a theory of the electrodynamic response of ferroelectric thin films containing periodic domain textures (PDTs) with 180° polarization-oriented domains. Here, we demonstrate that a depolarization field induced by PDTs gives rise to the negative capacitance of the ferroelectric film. We derive frequency-dependent dielectric permittivity related to the PDT dynamics across the entire frequency range. We find the resonance mode of domain oscillations in the terahertz (THz) spectral band and the singular points in the phase of the reflected THz beam that are intimately related to the negative capacitance. Our findings provide a material platform for the THz negative-capacitance-based optics of ferroelectric films and for epsilon-near-zero plasmonic THz metamaterials.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; European Commission (EC); USDOE
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1466322
- Alternate ID(s):
- OSTI ID: 1461911
- Journal Information:
- Physical Review B, Vol. 98, Issue 2; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Modeling of Negative Capacitance in Ferroelectric Thin Films
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journal | June 2019 |
Ferroelectric negative capacitance
|
journal | March 2019 |
Harnessing ferroelectric domains for negative capacitance
|
journal | February 2019 |
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