1. Department of Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada
2. Department of Biochemistry, University of Saskatchewan, 107 Wiggins Road, Saskatoon, Saskatchewan S7N 5E5, Canada
3. College of Pharmacy and Nutrition, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewan S7N 5C9, Canada
4. Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewan S7N 5C9, Canada
5. Department of Physics and Mathematics, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, Tennessee 37209
6. Department of Physics, University of MissouriKansas City, 5100 Rockhill Road, Kansas City, Missouri 64110
7. Institute of Metal Physics, Russian Academy of Sciences Ural Division, 620219 Yekaterinburg GSP-170, Russia