Mapping spin-correlations with hard X-ray free-electron laser Yinpeng Zhong, Sascha Epp, Faton Krasniqi, Lutz Foucar, Mariano Trigo, Chen Jian, David Reis, Hailong Wang, Jianhua Zhao, Henrik Lemke et al. (3 more) EPJ Web Conf., 205 (2019) 07007 Published online: 16 April 2019 DOI: 10.1051/epjconf/201920507007