Evolution of nanodomains in the uniaxial relaxor Sr/sub 0.61/Ba/sub 0.39/Nb/sub 2/O/sub 6/:Ce

Author

Shvartsman, Vladimir V. ; Kleemann, Wolfgang

Author_Institution

Angewandte Phys., Univ. Duisburg

Volume

53

Issue

12

fYear

2006

fDate

12/1/2006 12:00:00 AM

Firstpage

2275

Lastpage

2279

Abstract

The evolution of the nanodomain pattern of the uniaxial relaxor ferroelectric strontium barium niobate doped with cerium was studied by piezoresponse force microscopy (PFM). The fractal-like nanodomains observed at room temperature decay on heating. At temperatures up to about 15 K above the Curie temperature, T_c = 320 K, areas of correlated polarization are still visible. On cooling from the paraelectric state to below T_c, a slow isothermal growth of nanodomain was found. The mean domain size increases according to a logarithmic law as predicted for the three-dimensional random field Ising model

Keywords

Ising model; atomic force microscopy; barium compounds; cerium; electric domains; ferroelectric Curie temperature; niobium compounds; oxygen compounds; relaxor ferroelectrics; strontium compounds; 320 K; 3D random field Ising model; Curie temperature; Sr_0.61Ba_0.39Nb₂O₆:Ce; cerium; isothermal nanodomain growth; nanodomain pattern; paraelectric state; piezoresponse force microscopy; strontium barium niobate; uniaxial relaxor ferroelectric; Barium; Cerium; Fractals; Heating; Microscopy; Niobium compounds; Polarization; Relaxor ferroelectrics; Strontium; Temperature;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2006.173

Filename

4037261