Molecule‐Based Ferroelectric Thin Films: Mononuclear Lanthanide Enantiomers Displaying Room‐Temperature Ferroelectric and Dielectric Properties

Abstract

Eu-reka! Two neutral mononuclear europium enantiomers [Eu(tta)3L] and their thin films were prepared (tta=2-thenoyltrifluoroacetonate; L=(−)-4,5-pinene bipyridine (1), L=(+)-4,5-pinene bipyridine (2)). The ferroelectric measurements of the thin films show E–P hysteresis loops at room temperature (Tc=28.0 °C) with remnant polarization of 0.022 μC cm−2 and a coercive field of 25 kV cm−1. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z701802_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.