Journal
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
Volume 46, Issue 10B, Pages 7151-7154Publisher
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/JJAP.46.7151
Keywords
relaxor; Brillouin scattering; Raman scattering; central peak; diffuse phase transition; polar nanoregion
Categories
Ask authors/readers for more resources
Dielectric and light scattering studies on a Pb(Ni1/3Nb2/3)O-3-0.29PbTiO(3) single crystal have been conducted in a wide temperature range to clarify the relaxational properties of polar nanoregions (PNRs). The temperature dependences of the relaxation time observed in light scattering spectra show two characteristic temperatures: associated with enhancement of the correlation length in the PNRs T* and related to a temperature-induced macroscopic structural phase transition Tf. These results are closely related to the behavior of the PNRs. We suggest that two relaxation processes are attributed to the central peak and that the origins of the observed relaxation processes are two types of switching processes of dipole moments in the PNRs. In addition, the activation energy at 0 K has been evaluated as H-0B = 2.11 x 10(3) K.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available