1. National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
2. Department of Physics, Florida State University, Tallahassee, Florida 32306, United States
3. Physics and Astronomy Department, Wayne State University, Detroit, Michigan 48202, United States
4. Department of Materials Science and Engineering, The University of Tennessee, Knoxville, Tennessee 37996, United States
5. Oak Ridge National Lab, Oak Ridge, Tennessee 37830, United States