PMID: 15245194Jul 13, 2004Paper

Soft x-ray resonant diffraction study of magnetic and orbital correlations in a manganite near half doping

Physical Review Letters
K J ThomasM van Veenendaal

Abstract

We have utilized resonant x-ray diffraction at the Mn L(II,III) edges in order to directly compare magnetic and orbital correlations in Pr0.6Ca0.4MnO3. Comparing the widths of the magnetic and orbital diffraction peaks, we find that the magnetic correlation length exceeds that of the orbital order by nearly a factor of 2. Furthermore, we observe a large (approximately 3 eV) spectral weight shift between the magnetic and orbital resonant line shapes, which cannot be explained within the classic Goodenough picture of a charge-ordered ground state. To explain the shift, we calculate the orbital and magnetic resonant diffraction line shapes based on a relaxed charge-ordered model.

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Citations

Aug 7, 2010·The Review of Scientific Instruments·T A W BealeP D Hatton
Aug 3, 2011·The Review of Scientific Instruments·D G HawthornG A Sawatzky
Feb 8, 2011·Nature Materials·Eva BenckiserBernhard Keimer
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Apr 7, 2010·Physical Review Letters·S B WilkinsD F McMorrow
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