Revised analysis of negative capacitance in ferroelectric-insulator capacitors: Analytical and numerical results, physical insight, comparison to experiments

T. Rollo, F. Blanchini, G. Giordano, R. Specogna, D. Esseni

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

7 Citations (Scopus)

Abstract

We present a revised analysis of Negative Capacitance (NC) in ferroelectric-insulator capacitors, and particularly of the difference between systems with and without a metal interlayer. We develop a model accounting for the three-dimensional electrostatics and report analytical and numerical results based on Landau-Ginzburg equations. Our results explain the lack of NC operation in capacitors having an interlayer metal, compare well with recent experiments and enlighten the role of traps at the ferroelectric-oxide interface.

Original languageEnglish
Title of host publicationProceedings of the IEEE International Electron Devices Meeting, IEDM 2019
PublisherIEEE
Number of pages4
ISBN (Electronic)978-1-7281-4031-5
DOIs
Publication statusPublished - 2019
Event65th Annual IEEE International Electron Devices Meeting, IEDM 2019 - San Francisco, United States
Duration: 7 Dec 201911 Dec 2019

Conference

Conference65th Annual IEEE International Electron Devices Meeting, IEDM 2019
Country/TerritoryUnited States
CitySan Francisco
Period7/12/1911/12/19

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