Coupling Dy3 Triangles Enhances Their Slow Magnetic Relaxation


  • We acknowledge the DFG (Center for Functional Nanostructures and SPP1137 Molekularer Magnetismus), and the European Community’s 7th Framework Programme (Marie Curie Action for a post-doctoral grant to J.L., PIEF-GA-2008-220498, and project MolSpinQIP, FP7-ICT-2007-C-211284).


original image

Two's company: Coupling two Dy3 triangles to give Dy6 (see picture; Dy blue, Cl green, O red) leads to a dramatic enhancement of the barrier height to magnetization reversal. The enhancement has been rationalized by single-crystal magnetometry measurements and ab initio calculations.