リラクサーにおける長距離秩序の発達
2001 年 43 巻 3 号 p. 241-247
詳細
2001 年 43 巻 3 号 p. 241-247
The colossal dielectric properties of relaxors are related to the appearance of polar nanoregions in cubic nonpolar matrix. In this hetero-phase structure, the long-range order is locally clamped and the average symmetry of the specimen remains to be cubic down to the low temperature. However, the application of the electric field yields the evolution of longrange order and the ferroelectric state prevails on the specimen. However, it develops with quite long incubation time. We report here this peculiar phenomenon which was observed by optical, X-ray and TEM techniques, and discuss the origin.
