1. Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
2. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
3. Department of Electrical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
4. Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
5. Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
6. Department of Physics, Mount Holyoke College, South Hadley, Massachusetts 01075, United States
7. Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
8. Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States