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Triakontadipole and high-order dysprosium multipoles in the antiferromagnetic phase of DyB$_2$C$_2$

Authors
  • Princep, A. J.
  • Mulders, A. M.
  • Staub, U.
  • Scagnoli, V.
  • Nakamura, T.
  • Kikkawa, A.
  • Lovesey, S. W.
  • Balcar, E.
Type
Published Article
Publication Date
Apr 12, 2011
Submission Date
Apr 12, 2011
Identifiers
DOI: 10.1088/0953-8984/23/26/266002
Source
arXiv
License
Yellow
External links

Abstract

Resonant soft x-ray Bragg diffraction at the Dy M$_{4,5}$ edges has been used to study Dy multipoles in the combined magnetic and orbitally ordered phase of DyB$_2$C$_2$. The analysis incorporates both the intra-atomic magnetic and quadrupolar interactions between the 3d core and 4f valence shells. Additionally, we introduce to the formalism the interference of magnetic and nonmagnetic oscillators. This allows a determination of the higher order multipole moments of rank 1 (dipole) to 6 (hexacontatetrapole). The strength of the Dy 4f multipole moments have been estimated at being between 7 and 78 % of the quadrupolar moment.

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