https://doi.org/10.1140/epjb/e2011-20484-3
Regular Article
A comparative Raman study of 0.65(PbMg1/3Nb2/3O3) -0.35(PbTiO3) single crystal and thin film
1
Laboratoire de Physique de la Matière Condensée, Université de
Picardie Jules Verne, 33 rue Saint
Leu, 80039
Amiens,
France
2
Laboratoire SPMS, Ecole Centrale Paris, Grande Voie des Vignes,
92295
Chatenay Malabry Cedex,
France
3
Faculty of Physics, Southern Federal University,
5 Zorge str., 344090
Rostov-on-Don,
Russia
a e-mail: houssny.bouyanfif@u-picardie.fr
Received: 17 June 2011
Received in final form: 16 November 2011
Published online: 23 January 2012
We report a comparative Raman study of 0.65(PbMg1/3Nb2/3O3)-0.35(PbTiO3) (PMN-0.35PT) single crystal and thin film. Raman spectra investigation indicates a change in bulk from the high temperature cubic to the tetragonal phase and then to the low temperature Mc monoclinic phase. The transition temperatures are in good agreement with the ones previously observed by dielectric measurements on the same sample. In contrast, we observe no phase transition to the monoclinic phase in the PMN-0.35PT 4000 Å thick film and only a cubic to tetragonal diffuse transition has been determined at high temperature. The enhanced stability of the tetragonal phase and the absence of low temperature monoclinic phase have been attributed to the in plane strain.
Key words: Solid State and Materials
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2012