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Hafnia Ferroelectric Thin Films: Compensation Charge Control and Modeling for Reproducing Negative Capacitance Effect of Hafnia Ferroelectric Thin Films (Adv. Mater. Interfaces 23/2020)
Author(s) -
Ahn Dante,
Jung Moonyoung,
Lee Yoseop,
Song Sungmun,
Ham Woori,
Suh Dongseok,
Ahn SeungEon
Publication year - 2020
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.202070127
Subject(s) - ferroelectricity , materials science , negative impedance converter , capacitor , hafnia , capacitance , thin film , optoelectronics , compensation (psychology) , polarization (electrochemistry) , ferroelectric capacitor , dielectric , electrode , nanotechnology , composite material , voltage , electrical engineering , ceramic , voltage source , physics , psychology , chemistry , psychoanalysis , cubic zirconia , engineering , quantum mechanics
The negative capacitance effect is reproduced by controlling the imbalance between the polarization conversion amount and the compensation charge amount. The physical phenomena occurring in the ferroelectric thin film are analyzed considering the impedance of each component, and a ferroelectric capacitor equivalent circuit model based on the RC parallel circuit is proposed. More details can be found in article number 2001356 by Seung‐Eon Ahn and co‐workers.