Supplemental Information: Magnetic Phase Transitions and Spin Density Distribution in the Molecular Multiferroic GaV4S8 System

Rebecca L. Dally, William D. Ratcliff II, 2 Lunyong Zhang, 4 Heung-Sik Kim, 6 Markus Bleuel, 2 J. W. Kim, 7 Kristjan Haule, David Vanderbilt, Sang-Wook Cheong, 6, 7 and Jeffrey W. Lynn NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899-6102 Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742 Laboratory for Pohang Emergent Materials, Pohang Accelerator Laboratory and Max Plank POSTECH Center for Complex Phase Materials, Pohang University of Science and Technology, Pohang 790-784, Korea School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China Department of Physics, Kangwon National University, Chuncheon 24341, Republic of Korea Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854 Rutgers Center for Emergent Materials, Rutgers University, Piscataway, NJ 08854 (Dated: June 15, 2020)