Magnetic properties of the Shastry-Sutherland lattice material BaNd2ZnO5

Yuto Ishii, G. Sala, M. B. Stone, V. O. Garlea, S. Calder, Jie Chen, Hiroyuki K. Yoshida, Shuhei Fukuoka, Jiaqiang Yan, Clarina dela Cruz, Mao-Hua Du, David S. Parker, Hao Zhang, Cristian D. Batista, Kazunari Yamaura, and A. D. Christianson
Phys. Rev. Materials 5, 064418 – Published 28 June 2021

Abstract

We investigate the physical properties of the Shastry-Sutherland lattice material BaNd2ZnO5. Neutron diffraction, magnetic susceptibility, and specific heat measurements reveal antiferromagnetic order below 1.65 K. The magnetic order is found to be a 2Q magnetic structure with the magnetic moments lying in the Shastry-Sutherland lattice planes comprising the tetragonal crystal structure of BaNd2ZnO5. The ordered moment for this structure is 1.9(1) μB per Nd ion. Inelastic neutron scattering measurements reveal that the crystal field ground state doublet is well separated from the first excited state at 8 meV. The crystal field Hamiltonian is determined through simultaneous refinement of models with both the LS coupling and intermediate coupling approximations to the inelastic neutron scattering and magnetic susceptibility data. The ground state doublet indicates that the magnetic moments lie primarily in the basal plane with magnitude consistent with the size of the determined ordered moment.

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  • Received 18 March 2021
  • Accepted 7 June 2021
  • Corrected 19 April 2022

DOI:https://doi.org/10.1103/PhysRevMaterials.5.064418

©2021 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Corrections

19 April 2022

Correction: The magnetic space group label in the caption to Fig. 4, the last paragraph of Sec. IV, and Table VII in Appendix D contained an error and has been fixed. Corresponding operator signs in the entries of Table VII have been modified accordingly.

Authors & Affiliations

Yuto Ishii1,2,*, G. Sala3,*, M. B. Stone4, V. O. Garlea4, S. Calder4, Jie Chen2,5, Hiroyuki K. Yoshida6,2, Shuhei Fukuoka6, Jiaqiang Yan7, Clarina dela Cruz4, Mao-Hua Du7, David S. Parker7, Hao Zhang7,8, Cristian D. Batista4,8, Kazunari Yamaura2,5, and A. D. Christianson7,†

  • 1Department of Physics, Hokkaido University, North 10 West 8, Kita-ku, Sapporo 060-0810, Japan
  • 2International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
  • 3Spallation Neutron Source, Second Target Station, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
  • 4Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
  • 5Graduate School of Chemical Sciences and Engineering, Hokkaido University, North 10 West 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
  • 6Department of Physics, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
  • 7Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
  • 8Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA

  • *These authors contributed equally to this paper.
  • christiansad@ornl.gov

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Vol. 5, Iss. 6 — June 2021

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