リラクサー誘電体の構造物性―Pb (Mg1/3Nb2/3) O3におけるPolar Nano Regionの形成
2004 年 46 巻 1 号 p. 73-78
詳細
2004 年 46 巻 1 号 p. 73-78
Review is given on recent neutron scattering studies of the prototypical relaxor Pb (Mg1/3Nb2/3) O3 (PMN), particularly focusing on diffuse scattering from polar nanoregions (PNRs) . Inconsistency between the relative intensities of diffuse scattering and those of the lowest-energy transverseoptic phonons in PMN has remained unsolved for a decade. A simple model consisting of two components δcm and δshift, which has been proposed to solve the contradiction, is introduced in this article.
