1. Department
of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
2. Department
of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
3. Department
of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
4. Department
of Earth Sciences, University of Western Ontario, London, Ontario N6A 5B7, Canada
5. Department
of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
6. Brockhouse
Institute for Materials Research, McMaster University, Hamilton, Ontario L8S 4M1, Canada