1. Department of Physics, Florida International University, 11200 SW 8th Street, Miami, Florida 33199, United States
2. Department of Materials Science and Engineering, University of California, Irvine, California 92697, United States
3. Irvine Materials Research Institute (IMRI), University of California, Irvine, California 92697, United States
4. Department of Physics and Astronomy, University of California, Irvine, California 92697, United States
5. Biomolecular Science Institute, Florida International University, 11200 SW 8th Street, Miami, Florida 33199, United States