Ferromagnetic and antiferromagnetic fluctuations of pi-d itinerant electrons disclosed by band-selective NMR.
We present a band-selective NMR method to probe the constituent electronic bands separately in the condensed molecular matter. This method is applied to an organic-inorganic pi-d hybrid metal, and its utility to give the static and dynamic spin susceptibilities for the constituent bands is demonstrated. The analysis of the results uncovers an exotic feature; the antiferromagnetic and ferromagnetic correlations are enhanced in separate bands in a single material. This finding provides a novel scope connecting the metal-insulator transitions in this system and the manganese oxides.
Kawamoto
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Division of Physics, Graduate School of Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan.
Miyagawa
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Kanoda
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