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Title: Single crystal magnetic structure and susceptibility of CoSe 2O 5

The structure of CoSe 2O 5 consists of one-dimensional ribbons of edge-sharing CoO 6 octahedra bound together by polyanionic subunits of Se 2O 5. Previous work on polycrystalline samples reported a canted antiferromagnetic arrangement of the magnetic moments below the ordering temperature of 8.5 K. Here, we report a single crystal investigation using variable temperature and field magnetic susceptibility and low-temperature neutron diffraction to more precisely characterize the nature of the magnetic ground state of CoSe 2O 5. Contrary to previous reports, we find that the single crystal magnetic structure shows no canting of the antiferromagnetic ground state, and in the process have identified several field-induced changes to the magnetization. Lastly, we discuss these results in the context of the revised magnetic structure and highlight the importance of crystal growth for the accurate characterization of these properties.
 [1] ;  [2] ;  [3] ;  [3]
  1. Univ. of Maryland, College Park, MD (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Univ. of Southern California, Los Angeles, CA (United States)
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 236; Journal Issue: C; Journal ID: ISSN 0022-4596
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
36 MATERIALS SCIENCE; metamagnetism; single crystal; magnetic structure
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1252059