Commensurate Dy magnetic ordering associated with incommensurate lattice distortion in orthorhombic DyMnO3
R Feyerherm, E Dudzik, N Aliouane… - arXiv preprint cond-mat …, 2006 - arxiv.org
R Feyerherm, E Dudzik, N Aliouane, DN Argyriou
arXiv preprint cond-mat/0603613, 2006•arxiv.orgSynchrotron x-ray diffraction and resonant magnetic scattering experiments on single crystal
DyMnO3 have been carried out between 4 and 40 K. Below TN (Dy)= 5K, the Dy magnetic
moments order in a commensurate structure with propagation vector 0.5 b*. Simultaneous
with the Dy magnetic ordering, an incommensurate lattice modulation with propagation
vector 0.905 b* evolves while the original Mn induced modulation is suppressed and shifts
from 0.78 b* to 0.81 b*. This points to a strong interference of Mn and Dy induced structural …
DyMnO3 have been carried out between 4 and 40 K. Below TN (Dy)= 5K, the Dy magnetic
moments order in a commensurate structure with propagation vector 0.5 b*. Simultaneous
with the Dy magnetic ordering, an incommensurate lattice modulation with propagation
vector 0.905 b* evolves while the original Mn induced modulation is suppressed and shifts
from 0.78 b* to 0.81 b*. This points to a strong interference of Mn and Dy induced structural …
Synchrotron x-ray diffraction and resonant magnetic scattering experiments on single crystal DyMnO3 have been carried out between 4 and 40 K. Below TN(Dy) = 5K, the Dy magnetic moments order in a commensurate structure with propagation vector 0.5 b*. Simultaneous with the Dy magnetic ordering, an incommensurate lattice modulation with propagation vector 0.905 b* evolves while the original Mn induced modulation is suppressed and shifts from 0.78 b* to 0.81 b*. This points to a strong interference of Mn and Dy induced structural distortions in DyMnO3 besides a magnetic coupling between the Mn and Dy magnetic moments.
arxiv.org