Phase precipitation in the Bi1−xCaxMnO3 compounds (x = 0.4–0.6) Guannan Li, Guanghui Rao, Qingzhen Huang, Qingqing Gao, Jun Luo, Guangyao Liu, Jingbo Li and Jingkui Liang EPL, 101 6 (2013) 67004 Published online: 29 March 2013 DOI: 10.1209/0295-5075/101/67004