- Magnetic and micro-Raman studies of hexagonal-DyMnO3.
Magnetic and micro-Raman studies of hexagonal-DyMnO3.
Journal of physics. Condensed matter : an Institute of Physics journal (2013-01-12)
S Mansouri, S Jandl, J Laverdière, P Fournier, A A Mukhin, V Yu Ivanov, A M Balbashov
PMID23306085
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.
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