Magnetization and resistivity steps in the phase separated Pr0.5Ca0.5Mn1-xNixO3 manganites S. Hébert, A. Maignan, V. Hardy, C. Martin, M. Hervieu, B. Raveau, R. Mahendiran and P. Schiffer Eur. Phys. J. B, 29 3 (2002) 419-424 Published online: 14 October 2002 DOI: 10.1140/epjb/e2002-00324-5