1. Department
of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
2. Department
of Earth Sciences, University of Western Ontario, London, Ontario N6A 5B7, Canada
3. Department
of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
4. Department
of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
5. Materials
Science Division, Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Sayo, Hyogo 679-5198, Japan
6. Canadian Light
Source, Saskatoon, Saskatchewan S7N 5B3, Canada