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Triakontadipole and high-order dysprosium multipoles in the antiferromagnetic phase of DyB2C2

DOI: 10.1088/0953-8984/23/26/266002 DOI Help

Authors: A. J. Princep (Curtin University) , A. M. Mulders (University of New South Wales; Curtin University; Bragg Institute) , U. Staub (Paul Scherrer Inst) , V. Scagnoli (Paul Scherrer Institut) , T. Nakamura (JASRI/SPring-8) , A. Kikkawa (RIKEN/SPring-8) , S. W. Lovesey (Diamond Light Source; ISIS Facility) , E. Balcar (Vienna University of Technology)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Physics: Condensed Matter , VOL 23 (26)

State: Published (Approved)
Published: June 2011

Abstract: Resonant soft x-ray Bragg diffraction at the Dy M-4,M-5 edges has been used to study Dy multipoles in the combined magnetic and orbitally ordered phase of DyB2C2. 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 as being up to 80% of the quadrupolar moment.

Journal Keywords: Condensed Matter: Electrical, Magnetic And Optical

Subject Areas: Physics

Facility: Swiss Light Source

Added On: 04/07/2011 11:42

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