| Literature DB >> 17186907 |
Vladimir V Shvartsman1, Wolfgang Kleemann.
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, Tc = 320 K, areas of correlated polarization are still visible. On cooling from the paraelectric state to below Tc, 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.Entities:
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Year: 2006 PMID： 17186907 DOI： 10.1109/tuffc.2006.173
Source DB: PubMed Journal: IEEE Trans Ultrason Ferroelectr Freq Control ISSN： 0885-3010 Impact factor: 2.725