铋层状共生结构铁电体Bi7Ti4NbO21的第一性原理计算
刘峰1,2, 陆毅青1, 李永祥1

First-principles Study of Intergrowth Bismuth Layer-structured Ferroelectric Bi7Ti4NbO21
LIU Feng1,2, LU Yi-Qing1, LI Yong-Xiang1
图2 i BTN、BTN和BiT的态密度
Fig. 2 Total DOS of i BTN, BTN and BiT