1. Department of Civil Engineering and Geological Sciences and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, 46556, United States
2. Department of Physics and National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
3. Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, United States
4. Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, California 94720, United States