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Magnetic properties of the Shastry-Sutherland lattice material BaNd2ZnO5

Journal Article · · Physical Review Materials
 [1];  [2];  [3];  [3];  [3];  [4];  [5];  [6];  [7];  [3];  [7];  [7];  [8];  [9];  [4];  [7]
  1. Hokkaido Univ., Sapporo (Japan). Dept. of Physics; National Institute for Materials Science (NIMS), Tsukuba (Japan). International Center for Materials Nanoarchitectonics
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division
  4. National Institute for Materials Science (NIMS), Tsukuba (Japan). International Center for Materials Nanoarchitectonics; Hokkaido Univ., Sapporo (Japan). Graduate School of Chemical Sciences and Engineering
  5. National Institute for Materials Science (NIMS), Tsukuba (Japan). International Center for Materials Nanoarchitectonics; Hokkaido Univ., Sapporo (Japan). Dept. of Physics
  6. Hokkaido Univ., Sapporo (Japan). Dept. of Physics
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  8. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  9. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
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 2–Q 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.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1807237
Alternate ID(s):
OSTI ID: 1863649
Journal Information:
Physical Review Materials, Journal Name: Physical Review Materials Journal Issue: 6 Vol. 5; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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