Coupled Physical Properties and Crystal Chemistry of Europium Compound

The magnetism of Eu- and Gd-based materials has often been viewed as straightforward, given their large spin moments and minimal orbital contribution. However, the resulting weak anisotropy can give rise to unexpectedly rich behavior, including tunable magnetic phases that couple strongly to magnetotransport and lattice strain. These systems have therefore become model platforms in the search for field-controlled electronic topology. This talk will highlight recent results from the literature and our own studies of Eu-based compounds, where structural and chemical tuning enable systematic exploration of these intertwined properties, providing a foundation for assessing possible links to electronic topology in bulk single crystals.