Abstract
Results of magnetization and neutron diffraction measurements of the manganese vanadate system Mn5(VO4)2(OH)4 are reported. The crystal structure of this compound contains triangular [Mn3O13] building blocks that produce two-dimensional Mn2+ magnetic networks with striped triangular topologies. The Mn sheets are connected through the nonmagnetic vanadate tetrahedra extending along the a-axis. Magnetization measurements performed on single crystals reveal the onset of a long-range antiferromagnetic order below approximately 45 K. The magnetic structure is Néel-type with nearest-neighbor Mn atoms coupled via three or four antiferromagnetic bonds. The magnetic moments are confined within the layers and are oriented parallel to the b direction. The magnitudes of ordered moments are reduced, presumably by geometrical frustration and the low-dimensionality of the lattice structure.
| Original language | English |
|---|---|
| Article number | 101407 |
| Journal | AIP Advances |
| Volume | 8 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 1 2018 |
Funding
Work at the Oak Ridge National Laboratory, was sponsored by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division (for macroscopic characterization) and Scientific User Facilities Division (for neutron scattering studies). The authors also acknowledge the financial support from the National Science Foundation under grant no. DMR-1410727. Authors thanks A. Savici for the help provided with the CORELLI data processing. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).