1. Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
2. Department of Chemistry, Wellesley College, Wellesley, Massachusetts 02481, United States
3. Materials Department and Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
4. Max-Planck-Institut für Festkörperforschung, Stuttgart 70569, Germany
5. Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11974, United States
6. Center for Computational Quantum Physics, The Flatiron Institute, New York, New York 10010, United States