1. Center for High Pressure Science & Technology Advanced Research, 1690 Cailun Rd, 201203 Shanghai, China
2. Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
3. Physics Division, School of Science and Technology, University of Camerino, I-62032 Camerino, Macerata, Italy
4. Max Planck Institute for Chemical Physics of Solids, Nöthnizer Strasse 40, 01187 Dresden, Germany
5. ICGM, CNRS, Universite de Montpellier, ENSCM, 34095 Montpellier, France