1. STMicroelectronics, 850 Avenue Jean Monnet, 38920 Crolles, France; LTM, Univ. Grenoble Alpes, F-38000 Grenoble, France; and CEA, LETI, Minatec Campus, F-38054 Grenoble, France
2. STMicroelectronics, 850 Avenue Jean Monnet, 38920 Crolles, France
3. CEA, LETI, Minatec Campus, F-38054 Grenoble, France
4. LTM, Univ. Grenoble Alpes, F-38000 Grenoble, France