1 Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing Normal University, Beijing 100875, P. R. China. haolingsun@bnu.edu.cn.
A novel ferromagnetic 1D dysprosium chain was synthesized. It exhibits slow magnetic relaxation, originating from the single-ion behaviour of Dy(3+) as indicated by dc and ac magnetic data of both diluted and un-diluted samples.