Large Clusters of Metal Ions: The Transition from Molecular to Bulk Magnets

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Science  19 Aug 1994:
Vol. 265, Issue 5175, pp. 1054-1058
DOI: 10.1126/science.265.5175.1054


Clusters of metal ions are a class of compounds actively investigated for their magnetic properties, which should gradually change from those of simple paramagnets to those of bulk magnets. However, their interest lies in a number of different disciplines: chemistry, which seeks new synthetic strategies to make larger and larger clusters in a controlled manner; physics, which can test the validity of quantum mechanical approaches at the nanometer scale; and biology, which can use them as models of biomineralization of magnetic particles.