Virginia TechKwok, C. K.Desu, Seshu B.2014-04-162014-04-161992-03-01Kwok, CK; Desu, SB, "Pyrochlore to Perovskite phase-transformation in sol-gel derived lead-zirconate-titanate thin-films," Appl. Phys. Lett. 60, 1430 (1992); http://dx.doi.org/10.1063/1.1073120003-6951http://hdl.handle.net/10919/47405Pyrochlore to perovskite phase transformation in sol-gel derived lead-zirconate-titanate (PZT) films was studied by x-ray diffraction and transmission-electron microscopy (TEM). X-ray diffraction studies of PZT films on sapphire substrates indicated that the pyrochlore to perovskite phase transformation was completed at 650-degrees-C. In contrast, TEM investigations of free-standing PZT films showed that the phase transformation was completed at much higher temperatures. This discrepancy in the behavior of free-standing films versus films on substrate can be related to the size effect.application/pdfen-USIn CopyrightPhase transitionsDielectric oxidesPZT filmsTransmission electron microscopyLead zirconate titanateArticle - Refereedhttp://scitation.aip.org/content/aip/journal/apl/60/12/10.1063/1.107312https://doi.org/10.1063/1.107312