日時：2007年6月1日（金）15:00～
場所：南7号館2階202講義室
講師：Dr. Tomoaki Yamada（山田智明博士）（Ceramics Laboratory, Swiss Federal Institute of Technology, EPFL, CH-1015, Lausanne, Switzerland）
講演題目：「Tunable ferroelectric thin films with enhanced responses through nano-structural control」
講演内容：
BaxSr1-xTiO3 (BST) and its composite films have been studied for the improvement of the tunable performances via nano-structual control. The strong correlation between strain and tunability similar to that between strain and permittivity was confirmed in the epitaxial BST x=0 films, indicating that the high tunability of BST is strongly related to its high permittivity. The “oriented”nano-composite films composed of BST x=1 and CeO2, i.e. low-K dielectric, have achieved rather high tunability as compared to the significantly lowered permittivity. The obtained composite films also benefit from a suppressed temperature dependence of permittivity and tunability.
問合せ先：篠崎和夫：ex.2518、ksino＠ceram.titech.ac.jp