1. Department of Physics, Islamic Azad University, Ayatollah Amoli Branch, P. O. Box 678, Amol, Iran
2. Department of Physics, University of Mazandaran, P. O. Box 47416-95447, Babolsar, Iran
3. School of Physics, Damghan University, Canadian Quantum Research Center 204-3002 32 Ave Vernon, BC V1T 2L7 Canada, Damghan, 3671641167, Iran