title: Magnetic and micro-Raman studies of hexagonal-DyMnO3.
abstract: Dc-susceptibility measurements and Raman active phonon frequencies of hexagonal DyMnO(3) retrace the Mn(3+) ions antiferromagnetic transition at T(N) ~ 70 K and their spin reorientation at T(SR) ~ 48 K. The temperature evolution of Raman active mode frequencies and their over-hardening are associated with Dy(3+) and Mn(3+) ion displacements below T(N) and with a spin-phonon coupling that involves apical oxygen.
authors.affiliation: Département de Physique, Université de Sherbrooke, Sherbrooke, Canada. saber.mansouri@usherbrooke.ca
authors.forename: S
authors.initials: S
authors.lastname: Mansouri
authors.forename: S
authors.initials: S
authors.lastname: Jandl
authors.forename: J
authors.initials: J
authors.lastname: Laverdière
authors.forename: P
authors.initials: P
authors.lastname: Fournier
authors.forename: A A
authors.initials: AA
authors.lastname: Mukhin
authors.forename: V Yu
authors.initials: VY
authors.lastname: Ivanov
authors.forename: A M
authors.initials: AM
authors.lastname: Balbashov
mesh_terms: D008280:Magnetics; D017895:Manganese Compounds / Q000737:chemistry*; D008958:Models, Molecular; D010087:Oxides / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D060739:Phonons; D013059:Spectrum Analysis, Raman; D013113:Spin Labels; D013696:Temperature
chemical_list: D017895:Manganese Compounds; D010087:Oxides; D013113:Spin Labels; C027424:manganese oxide; D010100:Oxygen