1. Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
2. Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
3. Center for Advanced Microstructures and Devices (CAMD), Louisiana State University, Baton Rouge, LA 70806, USA
4. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
5. Department of Mechanical Engineering, Southern University and A&M College, Baton Rouge, LA 70807, USA
6. Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA