Affiliation: | 1. Institute of Electronic Structure and Laser, Foundation for Research and Technology–Hellas, P. O. Box 1527, Heraklion Crete 711 10, Greece;2. Institute of Electronic Structure and Laser, Foundation for Research and Technology–Hellas, P. O. Box 1527, Heraklion Crete 711 10, Greece Department of Physics, University of Crete, Heraklion Crete 710 03, Greece;3. Carmel Olefins Ltd, R & D, P.O. Box 1468, Haifa 31014, Israel;4. Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853 |