[1] Solid State Division, Oak Ridge National Laboratory, Oak Ridge,TN, United States
[2] Department of Physics and Astronomy, Vanderbilt University, Nashville,TN, United States
[3] Department of Chemistry, Vanderbilt University, Nashville,TN, United States
[4] Pixon LLC, 11 Night Heron Drive, Stony Brook,NY, United States
[5] Nion Co., Kirkland,WA, United States
[6] Department of Materials Science and Engineering, North Carolina State University, Raleigh,NC, United States