A High-Temperature Molecular Ferroelectric Zn/Dy Complex Exhibiting Single-Ion-Magnet Behavior and Lanthanide Luminescence

abstract

Multifunctional molecular ferroelectrics are exciting materials synthesized using molecular chemistry concepts, which may combine a spontaneous electrical polarization, switched upon applying an electric field, with another physical property. A high-temperature ferroelectric material is presented that is based on a chiral Zn2+/Dy3+ complex exhibiting Dy3+ luminescence, optical activity, and magnetism. We investigate the correlations between the electric polarization and the crystal structure as well as between the low-temperature magnetic slow relaxation and the optical properties.

keywords

BIS(IMIDAZOLIUM) L-TARTRATE; RELAXATION; FIELD; ANISOTROPY; POLYMERS; CRYSTAL; DESIGN

subject category

Chemistry

authors

Long, J; Rouquette, J; Thibaud, JM; Ferreira, RAS; Carlos, LD; Donnadieu, B; Vieru, V; Chibotaru, LF; Konczewicz, L; Haines, J; Guari, Y; Larionova, J

our authors

acknowledgements

We thank University Montpellier II and the CNRS for financial support. We also thank D. Granier (PAC Chimie Balard, Montpellier) for the single-crystal X-ray diffraction data. Fundacao para a Ciencia e a Tecnologia (FCT) and EU/FEDER COMPETE under contracts Pest-C/CTM/LA0011/2013 and FCOMP-01-0124-FEDER-037271 are also acknowledged.

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