Shvartsman Vladimir V, Kleemann Wolfgang
Angewandte Physik, Universität Duisburg-Essen, D-47048 Duisburg, Germany.
IEEE Trans Ultrason Ferroelectr Freq Control. 2006 Dec;53(12):2275-9. doi: 10.1109/tuffc.2006.173.
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.
通过压电力显微镜（PFM）研究了掺铈的单轴弛豫铁电铌酸锶钡的纳米畴图案的演变。在室温下观察到的类分形纳米畴在加热时会衰减。在高于居里温度Tc = 320 K约15 K的温度下，仍可看到相关极化区域。从顺电态冷却至低于Tc时，发现纳米畴有缓慢的等温生长。平均畴尺寸根据三维随机场伊辛模型预测的对数规律增加。
