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This content will become publicly available on July 27, 2019

Title: Electrodynamics of ferroelectric films with negative capacitance

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.
Authors:
 [1] ;  [2] ;  [3]
  1. Univ. of Picardie, Amiens (France). Lab. of Condensed Matter Physics; Landau Inst. for Theoretical Physics, Chernogolovka (Russia)
  2. Univ. of Picardie, Amiens (France). Lab. of Condensed Matter Physics
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 98; Journal Issue: 2; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; European Commission (EC); USDOE
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1466322
Alternate Identifier(s):
OSTI ID: 1461911