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Updated: Mar 2, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Ferromagnetic coupling in a chloride-bridged erbium single-molecule magnet
J D Hilgar1, B S Flores, J D Rinehart
1Department of Chemistry and Biochemistry, University of California - San Diego, La Jolla, CA 92093, USA. jrinehart@ucsd.edu.
Abstract:
We present the first ferromagnetically-coupled Er3+ complex with linked, high-anisotropy Er-COT (COT2- = cyclooctatetraene dianion) subunits. The dinuclear complex, [Er(μ2-Cl)(COT)(THF)]2, demonstrates single-molecule magnetism with a single, zero-field magnetization relaxation barrier of Ueff = 113 cm-1. This system offers evidence that anisotropy can be preserved in the presence of ferromagnetic linking of the Er-COT subunits, providing a rational means to build strong molecular magnets of tunable dimensionality.
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