Diffuse x-ray scattering in perovskite ferroelectrics

B. D. Chapman, E. A. Stern, S. W. Han, J. O. Cross, G. T. Seidler, V. Gavrilyatchenko, R. V. Vedrinskii, V. L. Kraizman

Research output: Contribution to journalArticlepeer-review

36 Scopus citations


Diffuse x-ray scattering measurements on the cubic paraelectric phase of single-crystal PbTiO 3 are presented. No diffuse scattering sheets are found, in contrast to sheets observed in the cubic paraelectric phases of BaTiO 3 and KNbO 3. A quantitative analysis of the diffuse scattering indicates that the soft-mode branch contribution to sheets is negligible in all three ferroelectric perovskites. Differences in the diffuse scattering are explained by differences in the disordering of the local displacements, thus resolving a long-standing controversy.

Original languageEnglish
Article number020102
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number2
StatePublished - Jan 2005
Externally publishedYes


Dive into the research topics of 'Diffuse x-ray scattering in perovskite ferroelectrics'. Together they form a unique fingerprint.

Cite this