Direct observation of t 2g orbital ordering in magnetite

Using soft-x-ray diffraction at the site-specific resonances in the Fe L2,3 edge, we find clear evidence for orbital and charge ordering in magnetite below the Verwey transition. The spectra show directly that the (0012) diffraction peak (in cubic notation) is caused by t2g orbital ordering at octah...

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Hauptverfasser: Schlappa, Justina (VerfasserIn) , Haverkort, Maurits W. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 17 January 2008
In: Physical review letters
Year: 2008, Jahrgang: 100, Heft: 2
ISSN:1079-7114
DOI:10.1103/PhysRevLett.100.026406
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.100.026406
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.100.026406
Volltext
Verfasserangaben:J. Schlappa, C. Schüßler-Langeheine, C.F. Chang, H. Ott, A. Tanaka, Z. Hu, M.W. Haverkort, E. Schierle, E. Weschke, G. Kaindl, and L.H. Tjeng

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520 |a Using soft-x-ray diffraction at the site-specific resonances in the Fe L2,3 edge, we find clear evidence for orbital and charge ordering in magnetite below the Verwey transition. The spectra show directly that the (0012) diffraction peak (in cubic notation) is caused by t2g orbital ordering at octahedral Fe2+ sites and the (001) by a spatial modulation of the t2g occupation. 
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