Large magnetocrystalline anisotropy of Fe3−xCrxSe4 single crystals due to Cr substitution D. Li, S. J. Li, B. J. Dong, T. Yang, W. Liu and Z. D. Zhang EPL, 109 3 (2015) 37004 Published online: 19 February 2015 DOI: 10.1209/0295-5075/109/37004