| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1803425 | Journal of Magnetism and Magnetic Materials | 2009 | 5 Pages |
Abstract
The results of the shell model lattice dynamics calculations of multiferroic RMn2O5RMn2O5 materials (space group Pbam ) are reported. Theoretical even-parity eigenmode frequencies are compared with those obtained experimentally in polarized Raman scattering experiments for R=Ho,DyR=Ho,Dy. Analysis of displacement patterns allows to identify vibrational modes which facilitate spin–phonon coupling by modulating the Mn–Mn exchange interaction and provides explanation of the observed anomalous temperature behavior of phonons.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
A.P. Litvinchuk,