Metastable ferroelectricity driven by depolarization fields in ultrathin Hf0.5Zr0.5O2

HfO2-based ferroelectric materials have immense technological potential and so significant attention has been given to improve the ferroelectric properties at low-thickness. Here, using Landau Devonshire theory, the authors show the origin of pinched hysteresis loops is connected with the existence...

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Main Authors: Nikitas Siannas, Christina Zacharaki, Polychronis Tsipas, Stefanos Chaitoglou, Laura Bégon-Lours, Cosmin Istrate, Lucian Pintilie, Athanasios Dimoulas
Format: Article
Language:English
Published: Nature Portfolio 2022-07-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-022-00951-x
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author Nikitas Siannas
Christina Zacharaki
Polychronis Tsipas
Stefanos Chaitoglou
Laura Bégon-Lours
Cosmin Istrate
Lucian Pintilie
Athanasios Dimoulas
author_facet Nikitas Siannas
Christina Zacharaki
Polychronis Tsipas
Stefanos Chaitoglou
Laura Bégon-Lours
Cosmin Istrate
Lucian Pintilie
Athanasios Dimoulas
author_sort Nikitas Siannas
collection DOAJ
description HfO2-based ferroelectric materials have immense technological potential and so significant attention has been given to improve the ferroelectric properties at low-thickness. Here, using Landau Devonshire theory, the authors show the origin of pinched hysteresis loops is connected with the existence of pronounced depolarizing fields which are minimized during field cycling recovering the full ferroelectric loops.
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spelling doaj.art-d8003fbe4f6f46ef83a1d175ce3b83cc2022-12-22T03:42:13ZengNature PortfolioCommunications Physics2399-36502022-07-015111010.1038/s42005-022-00951-xMetastable ferroelectricity driven by depolarization fields in ultrathin Hf0.5Zr0.5O2Nikitas Siannas0Christina Zacharaki1Polychronis Tsipas2Stefanos Chaitoglou3Laura Bégon-Lours4Cosmin Istrate5Lucian Pintilie6Athanasios Dimoulas7National Center for Scientific Research DEMOKRITOSNational Center for Scientific Research DEMOKRITOSNational Center for Scientific Research DEMOKRITOSNational Center for Scientific Research DEMOKRITOSIBM Research GmbHNational Institute of Materials PhysicsNational Institute of Materials PhysicsNational Center for Scientific Research DEMOKRITOSHfO2-based ferroelectric materials have immense technological potential and so significant attention has been given to improve the ferroelectric properties at low-thickness. Here, using Landau Devonshire theory, the authors show the origin of pinched hysteresis loops is connected with the existence of pronounced depolarizing fields which are minimized during field cycling recovering the full ferroelectric loops.https://doi.org/10.1038/s42005-022-00951-x
spellingShingle Nikitas Siannas
Christina Zacharaki
Polychronis Tsipas
Stefanos Chaitoglou
Laura Bégon-Lours
Cosmin Istrate
Lucian Pintilie
Athanasios Dimoulas
Metastable ferroelectricity driven by depolarization fields in ultrathin Hf0.5Zr0.5O2
Communications Physics
title Metastable ferroelectricity driven by depolarization fields in ultrathin Hf0.5Zr0.5O2
title_full Metastable ferroelectricity driven by depolarization fields in ultrathin Hf0.5Zr0.5O2
title_fullStr Metastable ferroelectricity driven by depolarization fields in ultrathin Hf0.5Zr0.5O2
title_full_unstemmed Metastable ferroelectricity driven by depolarization fields in ultrathin Hf0.5Zr0.5O2
title_short Metastable ferroelectricity driven by depolarization fields in ultrathin Hf0.5Zr0.5O2
title_sort metastable ferroelectricity driven by depolarization fields in ultrathin hf0 5zr0 5o2
url https://doi.org/10.1038/s42005-022-00951-x
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