六方类钙钛矿体系La<sub>2</sub>Ca<sub>2</sub>MnO<sub>7</sub>-Sm<sub>2</sub>Ca<sub>2</sub>MnO<sub>7</sub>的结构变化和相关系

Structure Variation and Phase Relationship of the Hexagonal Perovskite System La₂Ca₂MnO₇-Sm₂Ca₂MnO₇

BIE Li-Jian, LI Guo-Bao, LIAO Fu-Hui, LIN Jian-Hua

Chem. J. Chinese Universities . 2003, (5): 753 -756 .