1. IMEP‐LAHC LaboratoryMinatec‐INPG3 Parvis Louis Neel38016GrenobleFrance
2. STMicroelectronicsrue Jean Monnet38921CrollesFrance
3. IBM FranceBois‐Colombes92275France
4. Department of PhysicsAristotle University of ThessalonikiThessaloniki54124Greece