Journal article

Magnetic and electronic properties of RNiO₃ (R = Pr, Nd, Eu, Ho and Y) perovskites studied by resonant soft x-ray magnetic powder diffraction

  • Bodenthin, Y Swiss Light Source, Paul Scherrer Institut, Villigen PSI, Switzerland
  • Staub, U Swiss Light Source, Paul Scherrer Institut, Villigen PSI, Switzerland
  • Piamonteze, C Swiss Light Source, Paul Scherrer Institut, Villigen PSI, Switzerland
  • García-Fernández, Mirian Swiss Light Source, Paul Scherrer Institut, Villigen PSI, Switzerland - Institut de Physique, Université de Fribourg, Switzerland
  • Martínez-Lope, M J Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, Spain
  • Alonso, J A Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, Spain
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    2011
Published in:
  • Journal of Physics: Condensed Matter. - 2011, vol. 23, no. 3, p. 036002
English Soft x-ray resonant magnetic powder diffraction of the $(\frac {1}{2}~0~\frac {1}{2})$ reflection at the Ni L₂, ₃ edges is used to study the magnetic and electronic properties of a series of RNiO₃ materials (with R = Pr, Nd, Eu, Ho and Y) below the metal–insulator transition. The polarization and energy dependence of the reflection gives further support for a non-collinear magnetic structure and charge disproportionation in the whole RNiO₃ series. Only small changes in the spectra of the magnetic $(\frac {1}{2}~0~\frac {1}{2})$ reflection and in the absorption spectra could be detected. The results are discussed with comparison to charge transfer multiplet calculations. Our results emphasize that the lighter and heavier RNiO₃ compounds are very similar from the point of view of their local electronic and magnetic state despite the strong change of the metal-to-insulator transition temperature.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/301759
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