Cited by 21Ferroelectric and Piezoelectric MaterialsFerroelectric and Negative Capacitance DevicesDielectric materials and actuators

Dead Layer Thickness Estimation at the Ferroelectric Film-Metal Interface in PZT

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Podgorny, Yu. V., Vorotilov, K. A., Sigov, A. S., Scott, J. F.·2019·Applied Physics Letters

Abstract

Different models for estimation of the dead layer thickness at the ferroelectric film-metal interface are discussed, including the small-signal capacitance model and two methods based on dielectric hysteresis analysis—one based on slopes of the hysteresis loops at the coercive field and the other method based on comparison of dielectric hysteresis portraits. It is shown that the latter technique yields more reliable data as it excludes the effect of leakage and relaxation loss. Conductivity may have a pronounced effect on the validity of dead-layer thickness data. This work relates peripherally to negative capacitance in ferroelectric films and to lozenge-shaped hysteresis curves.

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Research works printed but not linked: 23

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Authors
Podgorny, Y. V., Vorotilov, K. A., Sigov, A. S., & Scott, J. F.
Affiliations
  • MIREA - Russian Technological University (RU)
  • University of St Andrews (GB)
Corresponding author
Scott, J. F.
Venue
Applied Physics Letters
Published
2019-04-01
Volume
114
Issue
13
ISSN
  • 0003-6951 (ISSN-L)
  • 1077-3118
OpenAlex
W2930778639
Cited by
21
References
0
Citations by year
2026: 4 · 2025: 4 · 2024: 1 · 2023: 3 · 2022: 3 · 2021: 1 · 2020: 3 · 2019: 2
FWCI
0.81
Type
journal article
Language
en
Open access
Locations
  • Applied Physics Letters (publishedVersion)
  • St Andrews Research Repository (St Andrews Research Repository) (submittedVersion)
Funders
Ministry of Education and Science of the Russian Federation (11.2259.2017, 3.5726.2017/8.9)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Ferroelectric and Piezoelectric Materials
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Ferroelectric and Negative Capacitance Devices
  • Physical Sciences › Engineering › Biomedical Engineering › Dielectric materials and actuators
Keywords
dead layer thickness, lead zirconate titanate, leakage current, relaxation losses, conductivity effects, negative capacitance

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