Giant Coercivity in a One-Dimensional Cobalt-Radical Coordination Magnet

Giant Coercivity in a One-Dimensional Cobalt-Radical Coordination Magnet

A metal-radical polymer [Co(hfac)2·BPNN] showed a very large coercive field of 52 kOe (4.1 MA m-1) at 6 K, indicating that it is the hardest magnet ever reported. Above 10 K, a soft character appeared, owing to the fast dynamics of magnetization reorientation.

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Veröffentlicht in:Journal of the American Chemical Society 2008-01, Vol.130 (1), p.24-25
Hauptverfasser: Ishii, Norio, Okamura, Yoshitomo, Chiba, Susumu, Nogami, Takashi, Ishida, Takayuki
Format: Artikel
Sprache:eng
Schlagworte:
Cobalt
Magnetics
Molecular Structure
Organometallic Compounds - chemistry
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Zusammenfassung:A metal-radical polymer [Co(hfac)2·BPNN] showed a very large coercive field of 52 kOe (4.1 MA m-1) at 6 K, indicating that it is the hardest magnet ever reported. Above 10 K, a soft character appeared, owing to the fast dynamics of magnetization reorientation.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja077666e