1. Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, United States
2. Institute for Quantum Matter, William H. Miller III Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, United States
3. Department of Chemistry, Princeton University, Princeton, New Jersey 08540, United States
4. Department of Physics & Astronomy, Rutgers University, Piscataway, New Jersey 08854, United States
5. Physics Department and Centre for the Physics of Materials, McGill University, 3600 University Street, Montreal, Quebec H3A 2T8, Canada
6. National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
7. Max-Planck-Institute for Chemical Physics of Solids, D-01187 Dresden, Germany
8. Department of Materials Science and Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, United States