1. Institute
for Applied Materials - Materials for Electrical and Electronic Engineering
(IAM-WET), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
2. Institute
for Applied Materials (IAM-WK), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
3. Laboratory
for Electron Microscopy (LEM), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
4. Institute
of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan