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Direct observation of t2g orbital ordering in magnetite

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arxiv cond-mat/0605096 v2 pith:TGYSH2N5 submitted 2006-05-03 cond-mat.str-el

J. Schlappa , C. Schuessler-Langeheine , C. F. Chang , H. Ott , A. Tanaka , Z. Hu , M. W. Haverkort , E. Schierle
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E. Weschke G. Kaindl L. H. Tjeng
This is my paper · ORCID
classification cond-mat.str-el
keywords orbitalorderingdiffractionmagnetitebelowcausedchargeclear
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Using soft-x-ray diffraction at the site-specific resonances in the Fe L23 edge, we find clear evidence for orbital and charge ordering in magnetite below the Verwey transition. The spectra show directly that the (001/2) 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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