Magnetic structure and properties of NaFeSO4F and NaCoSO4F

B. C. Melot (1) , G. Rousse (2) , J.-N. Chotard (1) , M. C. Kemei (3) , J. Rodriguez-Carvajal (4) , J.-M. Tarascon (1)

1 LRCS - Laboratoire réactivité et chimie des solides - UMR CNRS 7314
2 IMPMC - Institut de minéralogie et de physique des milieux condensés
3 Materials Department and Materials Research Laboratory, University of California
4 ILL - Institut Laue-Langevin

NaFeSO4F and NaCoSO4F crystallize in the maxwellite crystal structure and consist of one-dimensional chains of corner-sharing MO4F2 octahedra linked together through F atoms sitting in a trans configuration with respect to each other. Magnetic susceptibility measurements and low-temperature powder neutron diffraction indicate that both the Fe- and Co-based phases establish G-type antiferromagnetic ground states below 36 and 29 K, respectively.We discuss the obtained magnetic structure in the context of the local anisotropy of the two magnetic ions.

B. C. Melot, G. Rousse, J.-N. Chotard, M. C. Kemei, J. Rodriguez-Carvajal, et al.. Magnetic structure and properties of NaFeSO4F and NaCoSO4F. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2012, 85, pp.094415. ⟨10.1103/PhysRevB.85.094415⟩. ⟨hal-00683937⟩