Abstract
Soft x-ray resonant magnetic powder diffraction of the () reflection at the Ni L2, 3 edges is used to study the magnetic and electronic properties of a series ofRNiO3 materials(with R = Pr, Nd, Eu, Ho and Y) below the metal–insulator transition. The polarizationand energy dependence of the reflection gives further support for anon-collinear magnetic structure and charge disproportionation in the wholeRNiO3 series. Only small changes in the spectra of the magnetic () reflection and in the absorption spectra could be detected. The results are discussed with comparisonto charge transfer multiplet calculations. Our results emphasize that the lighter and heavierRNiO3 compounds are very similar from the point of view of their local electronic and magneticstate despite the strong change of the metal-to-insulator transition temperature.
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