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Magnetic multipoles and correlation shortage in the pyrochlore cerium stannate Ce2Sn2O7

DOI: 10.1103/PhysRevB.101.144419 DOI Help

Authors: S. W. Lovesey (Diamond Light Source) , G. Van Der Laan (Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 101 , PAGES 144419

State: Published (Approved)
Published: April 2020

Abstract: Cerium electronic multipoles in trigonal symmetry viewed in magnetic neutron diffraction are investigated. Analytic expressions for all the magnetic multipoles, and radial integrals calculated with an established atomic code, are used to scrutinize a recent claim to have observed an octupole-ice configuration in a powder sample of pyrochlore Ce2Sn2O7. Three equally plausible suites of multipoles belonging to uncorrelated cerium ions give equally satisfactory accounts of the available diffraction pattern. Our multipoles are suitable for future experiments using Bragg diffraction from a compound that supports long-range magnetic order.

Journal Keywords: neutron diffraction, radial integrals

Subject Areas: Physics, Materials, Mathematics

Technical Areas: Theoretical Physics

Added On: 30/06/2020 09:47

Discipline Tags:

Materials Science Physics Magnetism Theoretical Physics Mathematics

Technical Tags: