Crystal field levels and magnetic anisotropy in the kagome compounds Nd3Sb3Mg2 O14, Nd3Sb3Zn2 O14, and Pr3Sb3Mg2 O14

A. Scheie, M. Sanders, J. Krizan, A. D. Christianson, V. O. Garlea, R. J. Cava, C. Broholm

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Abstract

We report the crystal field levels of several newly discovered rare-earth kagome compounds: Nd3Sb3Mg2O14, Nd3Sb3Zn2O14, and Pr3Sb3Mg2O14. We determine the crystal electric field (CEF) Hamiltonian by fitting to neutron scattering data using a point charge Hamiltonian as an intermediate fitting step. The fitted Hamiltonians accurately reproduce bulk susceptibility measurements, and the results indicate easy-axis ground-state doublets for Nd3Sb3Mg2O14 and Nd3Sb3Zn2O14 and a singlet ground state for Pr3Sb3Mg2O14. These results provide the groundwork for future investigations of these compounds and a template for CEF analysis of other low-symmetry materials.

Original languageEnglish (US)
Article number134401
JournalPhysical Review B
Volume98
Issue number13
DOIs
StatePublished - Oct 1 2018

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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