Modification of surface chemistry by lattice Sn doping in BiFeO3 nanofibersM. Sobhan, Q. Xu, J. Zhao, A. Franklin, Y. Hu, J. S. Tse and P. WuEPL, 111 1 (2015) 18005DOI: https://doi.org/10.1209/0295-5075/111/18005