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Nature 450, 177-178 (8 November 2007) | doi:10.1038/450177a; Published online 7 November 2007
Materials science: Magnetic blue
Jeroen van den Brink1 & Alberto F. Morpurgo2
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Abstract
A commonly used blue dye is more than just a pretty colour. This material and its relatives are semiconductors, and their magnetic properties can be controlled by engineering their crystal structure.
Organic compounds are rarely magnetic, but metal phthalocyanine (MPc) materials are notable exceptions to this rule. Reporting in Advanced Materials, Heutz et al.1 now show that the magnetism of MPcs can be controlled.
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