| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1615665 | Journal of Alloys and Compounds | 2012 | 4 Pages |
Abstract
Single crystals of potassium tantalate niobate, KTa1−xNbxO3 (KTNx, x = 0.45, 0.50, and 0.55), were synthesized by the top-seeded solution growth method. The Raman scattering technique is used to investigate the sequence of phase transitions undergone by KTNx crystals. We discuss what features in the phonon spectrum are associated to each phase transition.
► The sequence of phase transitions of highly diluted KTNx single crystals was investigated by Raman scattering technique. ► The C–T and T–O phase transitions are straightforwardly observed and discussed. ► The O–R phase transition is characterized by changes in the slope (dν/dT) and of the intensity ratio of the modes appearing in the 500–600 cm−1 spectral region.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
N.N. Zhang, R.S. Wei, J.Y. Wang, X.B. Hu, H.J. Zhang, C.C. Santos, I. Guedes,