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Keywords:

  • chain structures;
  • lanthanides;
  • magnetic properties;
  • transition metals;
  • nanostructures
Thumbnail image of graphical abstract

Step it up: The Na2LnMnO(AsO4)2 series contains Ln-capped [MnO4] ferromagnetic chains, and the species with Ln=Gd reveals intriguing magnetic anomalies thought to be attributed to better structural confinement of the magnetic chains. It exhibits stepped magnetization and multiple-spin dynamics (see picture; Mn blue, Gd maroon, O red), two phenomena never before observed in a quasi-one-dimensional, 3d–4f condensed solid.