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Physicist Peter Schiffer of the University of Illinois at Urbana-Champaign, in collaboration with scientists at the Los Alamos National Laboratory, the Lawrence Berkeley National Laboratory’s Advanced Light Source, and with other researchers nationwide, has realized a nanoscale, artificial magnet by arranging an array of magnetic nano-islands along a geometry that is not found in natural magnets. Their paper “Emergent reduced dimensionality by vertex frustration in artificial spin ice” is published online in Nature Physics (26 Oct 2015, DOI: 10.1038/NPHYS3520).