1. Department of Materials Science and Nano Engineering, Rice University, Houston, Texas 77005, United States
2. Collaboratory for Advanced Computing and Simulations, Department of Physics and Astronomy, Department of Computer Science, Department of Chemical Engineering and Materials Science, and Department of Biological Sciences, University of Southern California, Los Angeles, California 90089-0242, United States
3. Bruker Nano Surfaces, Eden Prairie, Minnesota 55344, United States
4. Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
5. Materials Science and Engineering, Indian Institute of Technology, Gandhinagar 382355, Gujarat, India