Direct Observation of Charge and Orbital Ordering by Resonant X-ray Scattering

Charge and orbital ordering states of manganites have been observed directly by using synchrotron x-ray diffraction techniques. The alternating pattern of Mn 3+ and Mn 4+ in charge ordering state was elucidated by the anomalous dispersion method. The orbital ordering at Mn 3+ sites is presented base...

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Published inJapanese Journal of Applied Physics Vol. 38; no. S1; p. 360
Main Authors Murakami, Y., Hill, J. P., Gibbs, D., Blume, M., Kawada, H., Koyama, I., Tanaka, M., Kawata, H., Arima, T., Moritomo, Y., Tokura, Y., Hirota, K., Endoh, Y.
Format Journal Article
LanguageEnglish
Published 01.01.1999
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Summary:Charge and orbital ordering states of manganites have been observed directly by using synchrotron x-ray diffraction techniques. The alternating pattern of Mn 3+ and Mn 4+ in charge ordering state was elucidated by the anomalous dispersion method. The orbital ordering at Mn 3+ sites is presented based on resonant x-ray scattering near Mn K-absorption edge. The scattering mechanism has been developed by considering the splitting of the Mn 4 p levels due to the orbital ordering. The coupling among the charge, spin and orbital degrees of freedom is discussed.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAPS.38S1.360