In the Ba_(x)Sr_(l-x)TiO_(3) system,the decrease of the grain size causes the suppression of the ferroelectricity and the increase of the relaxation frequency.Barrier heights increase with the increasing grain size.Th...In the Ba_(x)Sr_(l-x)TiO_(3) system,the decrease of the grain size causes the suppression of the ferroelectricity and the increase of the relaxation frequency.Barrier heights increase with the increasing grain size.The result is analogous to magnetic phase transitions in nanocrystals and the solid-solid phase transitions in nanocrystals.展开更多
基金Supported by the Climbing Program of the National Commission of Science and Technology of China
文摘In the Ba_(x)Sr_(l-x)TiO_(3) system,the decrease of the grain size causes the suppression of the ferroelectricity and the increase of the relaxation frequency.Barrier heights increase with the increasing grain size.The result is analogous to magnetic phase transitions in nanocrystals and the solid-solid phase transitions in nanocrystals.
