Domain structure and Raman modes in PbTiO.sub.3./sub

0361273 - FZÚ 2012 RIV GB eng J - Článek v odborném periodiku
Bartasyte, A. - Margueron, S. - Santiso, J. - Hlinka, Jiří - Simon, E. - Gregora, Ivan - Chaix-Pluchery, O. - Kreisel, J. - Jimenez, C. - Weiss, F. - Kubilius, V. - Abrutis, A.
Domain structure and Raman modes in PbTiO₃
Phase Transitions. Roč. 84, 5-6 (2011), s. 509-520. ISSN 0141-1594. E-ISSN 1029-0338
Grant CEP: GA AV ČR KAN301370701; GA ČR GAP204/10/0616
Grant ostatní: GAUK(CZ) SVV-2011-263303
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: domain structure * PbTiO₃ films * Raman spectroscopy
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 1.006, rok: 2011
http://dx.doi.org/10.1080/01411594.2011.552433

A comparative analysis of Raman spectra from poly-domain PbTiO3 thin films with poly-domain and single-domain PbTiO3 crystals is presented. Raman spectroscopy reveals that the profiles of A1-symmetry modes can be significantly modified by the existence of the domain structure. The possible origins of these complex profiles of the A1(LO) and A1(TO) modes are discussed. It is emphasized that analysis of stresses. domain structure and phase transitions in the PbTiO3 thin films has to be based on the E(TO) modes presenting profiles that are not affected by the domain structure.
Trvalý link: http://hdl.handle.net/11104/0198628