1. School of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
2. Homer L. Dodge Department of Physics & Astronomy, University of Oklahoma, Norman, Oklahoma 73019, United States
3. Amethyst Research Inc., 123 Case Circle, Ardmore, Oklahoma 73401, United States
4. CRHEA-CNRS, Rue Bernard Gregory, 06560 Valbonne, France