Hard single-molecule magnets: Tetranuclear rare earth metal complexes with giant spin

Magnets formed from a single molecule are of particular interest in data storage, since the ability to store a bit on every molecule could vastly increase the storage capacity of computers. Researchers have now developed a new molecular system with a particular magnetic hardness. The ingredients in this special recipe are rare earth metals and an unusual nitrogen-based molecular bridge, as shown in the study published in the journal Angewandte Chemie.