Magnetic materials

A striking transition

The field of spin transition has been dominated by six-coordinate octahedral metal ions, but now an unusual spin transition has been found for an oxide containing a square-planar coordinate iron(II).

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Figure 1: High-spin octahedral and square-planar sites.
Figure 2: Interaction between adjacent square-planar sites under pressure.


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    Kawakami, T. et al. Nature Chem. 1, 371–376 10.1038/nchem.289(2009).

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Whangbo, M., Köhler, J. A striking transition. Nature Chem 1, 351–352 (2009).

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