Crystal structure and partial Ising-like magnetic ordering of orthorhombicDy2TiO5

Neutron powder diffraction study of NaMn2O4 and Li0.92Mn2Matsubara1, Nocerino2, Kamazawa3 et al. 2020Phys. Rev. Research

“…In fact, the fit provides that, as temperature decreases from 75 K to 40 K, the 2D correlation length increases from ∼18 Å to ∼28 Å. Such a correlation length is comparable to those of closely related compounds with a similar diffraction profile, e.g., NaMnO 2 [34] and CuMn 2 O 4 [35] having a layered transition metal triangular lattice structure, as well as Dy 2 TiO 5 [36] with a Dy triangular ladder configuration. Moreover, the previous μ + SR studies of NaMn 2 O 4 [23] revealed the presence of a disordered state at temperatures between T N and ∼60 K, which is fully consistent with the current NPD results.…”

Neutron powder diffraction study of NaMn$_2$O$_4$ and Li$_{0.92}$Mn$_2$O$_4$: New insights on spin-charge-orbital ordering

“…The orange and yellow bonds links between same Mn sites. The labelled bond distances (in Å) are from structural refinements at 200 K. layered transition metal triangular lattice structure, and Dy 2 TiO 5 [33] with Dy triangular ladder configuration. Moreover, the previous µ + SR studies of NaMn 2 O 4 [21] revealed the presence of a disordered state at temperatures between T N and ∼ 60 K, which is fully consistent with the current NPD results.…”