1. Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996, Materials Sciences and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, UMR CNRS-Ecole Centrale Paris, Laboratoire Structures, Propriétés et Modélisation des Solides, F92290 Châtenay-Malabry, France, Department of Theoretical Physics, Alba Nova Research Center, Royal Institute of...