1. Department of Physics and Astronomy, University of California, Riverside, California 92521, United States
2. Department of Physics, The Ohio State University, Columbus, Ohio 43221, United States
3. National Institute for Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
4. Department of Electrical and Computer Engineering, University of California, Riverside, California 92521, United States
5. National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States