1. Department of Engineering Physics, École Polytechnique de Montréal, C. P. 6079, Succursale Centre-Ville, Montréal, Québec H3C 3A7, Canada
2. Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario L8S 4L8, Canada
3. Elettra Sincrotrone Trieste S.C.p.A, S.S. 14−km 163, 5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
4. Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
5. Department of Physics and Astronomy, Interdisciplinary Nanoscience Center, Aarhus University, 8000 Aarhus C, Denmark
6. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States