Dielectric and Ferroelectric Properties of Sol-Gel Derived YMnO3 Films

Dielectric and Ferroelectric Properties of Sol-Gel Derived YMnO3 Films

There has been considerable interest in ferroelectric (FE) films especially for non-volatile memories and ultra high density DRAM applications. Such FE films typically consist of lead zirconate titanate (PZT) with novel oxide contacts, or layered perovskite such as Sr2Bi2TaO9. Recently, there have b...

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Veröffentlicht in:Journal of sol-gel science and technology 1998-01, Vol.13 (1-3), p.899-902
Hauptverfasser: Teowee, G, McCarthy, K C, McCarthy, F S, Bukowski, T J, Davis, DG, DR Uhlmann
Format: Artikel
Sprache:eng
Schlagworte:
Coercivity
Dielectric properties
Electric contacts
Electrical properties
Ferroelectric materials
Ferroelectricity
Hexagonal phase
Lead zirconate titanates
Perovskites
Polarization
Single crystals
Sol-gel processes
Stoichiometry
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Zusammenfassung:There has been considerable interest in ferroelectric (FE) films especially for non-volatile memories and ultra high density DRAM applications. Such FE films typically consist of lead zirconate titanate (PZT) with novel oxide contacts, or layered perovskite such as Sr2Bi2TaO9. Recently, there have been reports of sputtered YMnO3 films which exhibit a single polarization axis and do not contain any volatile species of Pb or Bi. Single crystal YMnO3 exhibits satisfactory polarization (6 μC/cm2) and low coercive field (
ISSN:0928-0707
1573-4846
DOI:10.1023/A:1008623323530