Magnetic-polaron–induced colossal magnetocapacitance in CdCr2S4 Y. M. Xie, Z. R. Yang, Z. T. Zhang, L. H. Yin, X. L. Chen, W. H. Song, Y. P. Sun, S. Q. Zhou, W. Tong and Y. H. Zhang EPL, 104 1 (2013) 17005 Published online: 23 October 2013 DOI: 10.1209/0295-5075/104/17005