*Francesco La Via1, Salvatore Tudisco2, Clementina Agodi2, Francesco Cappuzzello2,5, Antonello Santangelo3, Massimo Zimbone1, Marco Mauceri4
(1. CNR-IMM(Italy), 2. INFN-LNS(Italy), 3. STMicroelectronics(Italy), 4. LPE(Italy), 5. Physics Department, University of Catania(Italy))