1. Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, United States
2. Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
3. Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, Illinois 60607, United States
4. Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
5. Center for Simulational Physics and Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, United States
6. School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
7. School of Electrical and Computer Engineering, University of Georgia, Athens, Georgia 30602, United States
8. J.A. Woollam Co., Inc., Lincoln, Nebraska 68508, United States
9. Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
10. Northwestern Argonne Institute of Science and Engineering, Evanston, Illinois 60208, United States
11. Department of Electrical & Computer Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States