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Active Control of Ferroelectric Switching Using Defect-Dipole Engineering

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Title: Active Control of Ferroelectric Switching Using Defect-Dipole Engineering

Author(s): Daesu Lee; Byung Chul Jeon; Seung Hyub Baek; Sang Mo Yang; Yeong Jae Shin; Tae Heon Kim; Yong Su Kim; Jong-Gul Yoon; Chang Beom Eom; Tae Won Noh

Subject: Active control, ; Defect dipoles, ; Defect engineering, ; Dipolar interaction, ; Ferroelectric property, ; Ferroelectric switching, ; Multilevel data, ; Non-volatile memories, ; Piezoresponse force microscopy, ; Polarization switching, ; Defects, ; Ferroelectricity, ; Ferroelectric materials, ; bismuth, ; ferric ion, ; article, ; chemistry, ; electricity, ; Bismuth, ; Electricity, ; Ferric Compounds

Abstract: Active control of defect structures and associated polarization switching in a ferroelectric material is achieved without compromising its ferroelectric properties. Based on dipolar interaction between defect dipole and polarization, the unique functionality of the defect dipole to control ferroelectric switching is visualized. This approach can provide a foundation for novel ferroelectric applications, such as high-density multilevel data storage. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.