Direct observation of t2g orbital ordering in magnetite
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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