Structural Transformations in Cs 2 SnI 6 Defect Perovskite under High Pressure

Department of Physics, National Technical University of Athens, 15780, Athens, Greece Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15341, Agia Paraskevi Attikis, Athens, Greece Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States Department of Chemistry and Alexandra Navrotsky Institute for Experimental Thermodynamics, Washington State University, Pullman, WA 99164, United States Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China