Temperature-induced phase transition and morphotropic phase boundary in the nanocrystalline Pb1-xSrxTiO3system
- 8 August 1994
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 6 (32) , 6549-6556
- https://doi.org/10.1088/0953-8984/6/32/016
Abstract
The Raman spectra in the nanocrystalline Pb1-xSrxTiO3 system show that the morphotropic phase transition from the tetragonal phase to the cubic structure occurs at xc=0.57 and it can be associated with 'softening' of the lowest-frequency E(TO) phonon mode. The phase transition temperature in Pb0.8Sr0.2TiO3 decreases with decreasing grain size. The disappearance of the ferroelectric phase of Pb0.8Sr0.2TiO3 has been discussed as a function of grain size. The correlation between the temperature-induced and the Sr-concentration-induced phase transition in nanocrystalline Pb1-xSrxTiO3 has been observed.Keywords
This publication has 19 references indexed in Scilit:
- Investigations of the phase transition in nanocrystalline Pb1−xLaxTiO3 systemSolid State Communications, 1994
- Ferroelectric Phase Transition in Nanocrystalline Lead Zirconatitanate System by Raman ScatteringChinese Physics Letters, 1994
- Influence of Bi3+ ion displacement on the soft mode phase transition in Bi2Ti4O11Physics Letters A, 1993
- Size effect on the ferroelectric phase transition inultrafine particlesPhysical Review B, 1988
- High-pressure Raman study of two ferroelectric crystals closely related to PbTiPhysical Review B, 1984
- Lattice modes in the ferroelectric perovskites (Pb1–x Srx) TiO3Journal of Raman Spectroscopy, 1981
- ‘Soft’ optical phonons and the morphotropic phase transition of the Pb(Ti1−x, Zrx)O3 systemSolid State Communications, 1973
- Raman Studies of Underdamped Soft Modes in PbTiPhysical Review Letters, 1970
- Soft Phonon Modes and the 110°K Phase Transition in SrTiPhysical Review Letters, 1968
- Frequency and Temperature Response of the Polarization of Barium TitanatePhysical Review B, 1964