Affiliation: | (1) Department of Nuclear Physics, Lund Institute of Technology, Sölvegatan 14, S-223 62 Lund, Sweden;(2) Department of Inorganic Chemistry, Uppsala University, Box 531, S-751 21 Uppsala, Sweden;(3) Department of Electronics, Solid State Electronics, Royal Institute of Technology, PO Box Electrum 229, S-164 40 Kista, Sweden;(4) Australian Nuclear Science and Technology Organisation, PMB 1, 2234 Menai, Australia;(5) Department of Applied Physics, The Royal Melbourne Institute of Technology, GPO Box 2476V, 3001 Melbourne, Australia;(6) Teknikum, Uppsala University, Box 531, S-751 21 Uppsala, Sweden;(7) Present address: Institute for Surface Chemistry, Box 5607, S-11486 Stockholm, Sweden |