1. Advanced Light Source, E. O. Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
2. Institute of Geological and Nuclear Science, Wellington 5012, New Zealand
3. School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
4. Institut für Theoretische Physik und Astrophysik and Würzburg-Dresden Cluster of Excellence ct.qmat, Universität Würzburg, 97074 Würzburg, Germany
5. Department of Physics, Boston University, Boston, Massachusetts 02215, United States
6. Physikalisches Institut and Würzburg-Dresden Cluster of Excellence ct.qmat, Universität Würzburg, Würzburg 97074, Germany