Colossal elastoresistance and strain effects on phase-separated Pr0.5Sr0.5MnO3 films L. P. Chen, F. Wang, Y. S. Chen, Y. Sun and J. Gao EPL, 100 4 (2012) 47006 Published online: 04 December 2012 DOI: 10.1209/0295-5075/100/47006