Nature of magnetism in Ca3Co2O6

We find using LSDA+U band structure calculations that the novel one-dimensional cobaltate Ca$_3$Co$_2$O$_6$ is not a ferromagnetic half-metal but a Mott insulator. Both the octahedral and the trigonal Co ions are formally trivalent, with the octahedral being in the low-spin and the trigonal in the h...

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Hauptverfasser: Wu, Hua (VerfasserIn) , Haverkort, Maurits W. (VerfasserIn)
Dokumenttyp: Article (Journal) Kapitel/Artikel
Sprache:Englisch
Veröffentlicht: 2005
In: Arxiv

Online-Zugang:Verlag, kostenfrei, Volltext: http://arxiv.org/abs/cond-mat/0504490
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Verfasserangaben:Hua Wu, M.W. Haverkort, Z. Hu, D.I. Khomskii, and L.H. Tjeng

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650 4 |a Condensed Matter - Strongly Correlated Electrons 
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