1. Department
of Industrial and Manufacturing Engineering, Florida State University, Tallahassee, Florida 32306, United States
2. Energy
and Environmental Directorate, Pacific Northwest National
Laboratory, P.O. Box 999, Richland, Washington 99352, United States
3. Center
for Condensed Matter Science and Technology, Department of Physics, Harbin Institute of Technology, Harbin 150001, People’s Republic of China