铋层状结构铁电体的研究进展
张发强12, 李永祥1

Recent Progress on Bismuth Layer-structured Ferroelectrics
ZHANG Fa-Qiang12, LI Yong-Xiang1
图3 Bi 8 W 2 Nb 2 O 23 晶粒中规律分布的超位错a [ 25 ] 和SrBi 2 Ta 2 O 9 晶粒中未贯穿的超层错及其引起的系列台阶缺陷b, c [ 26 ]
Fig. 3 HRTEM image of the Bi 8 W 2 Nb 2 O 23 grain with regularly distributed super-dislocationsa [ 25 ] and HRTEM images of a broken super-stacking fault and the caused step-like faults in SrBi 2 Ta 2 O 9 grainb, c [ 26 ]