1. Department of Physics, University of Central Florida, Orlando, Florida 32816, United States
2. Department of Materials Science and Engineering, The Ohio State University, 140W 19th Avenue, Columbus, Ohio 43210, United States
3. Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, United States
4. NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
5. National Research Council, Washington, District of Columbia 20001, United States