Probing nonequivalent sites in iron phosphide Fe2P and its mechanism of phase transition Tingting Gu, Xiang Wu, Shan Qin, Catherine McCammon and Leonid Dubrovinsky Eur. Phys. J. B, 86 7 (2013) 311 Published online: 08 July 2013 DOI: 10.1140/epjb/e2013-40086-3