Intrinsic magnetism in two-dimensional Cr2X2Se (X = I, Br, Cl) monolayers Ben-Ling Gao, Guang-Hong Zhou, San-Huang Ke, Guang Song, Xiang-Rong Wang, Qing-Qiang Xu, Yan-Zong Wang, Feng Liang and Guan-Nan Li EPL, 135 6 (2021) 67005 Published online: 23 November 2021 DOI: 10.1209/0295-5075/ac369e