Charge ordering phase submerged in ferromagnetic ordering phase in the Nd0.5Sr0.5MnO3 system Bo Hong, Huilin Li, Langsheng Ling, Shun Tan, Yue Ying, Li Pi and Yuheng Zhang EPL, 80 3 (2007) 37002 Published online: 01 October 2007 DOI: 10.1209/0295-5075/80/37002