We would like to thank Huichao Zhang,Huixin Hu,and Yuchen Yu for their assistance in the laboratory and during sam-ple loadings,as well as Eugene Gregoryanz for useful discussions.Bartomeu Monserrat acknowledges support from a UKRI Future Leaders Fellowship(Grant No.MR/V023926/1),from the Gianna Angelopoulos Programme for Science,Technology,and Innovation,and from the Winton Programme for the Physics of Sustainability.Federico Gorelli acknowledges support from the Shanghai Science and Technology Committee,China(Grant No.22JC1410300)and the Shanghai Key Laboratory of Novel Extreme Condition Materials,China(Grant No.22dz2260800).Portions of this work were per-formed on beamline ID27 at the European Synchrotron Radiation Facility(ESRF)(Proposal Nos.CH6636 and CH6300),Grenoble,France as well as preliminary investigations on beamline 15U1 at the Shanghai Synchrotron Radiation Facility(SSRF),Shanghai,People's Republic of China.We would like to thank our beamline con-tacts Mohamed Mezouar and Gaston Garbarino for their assistance during the course of the x-ray diffraction data collection.The com-putational resources were provided by the Cambridge Tier-2 sys-tem operated by the University of Cambridge Research Computing Service and funded by the UK EPSRC(Grant No.EP/P020259/1). （Grant No.MR/V023926/1）