1. Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440 Bayreuth, Germany
2. Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
3. Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
4. European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
5. Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, United States