1. Stuttgart
Center for Electron Microscopy, Max Planck Institute for Solid State Research, Stuttgart 70569, Germany
2. Materials
Physics Group, University of Stuttgart, Stuttgart 70569, Germany
3. Department
of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
4. Environmental Protection College, Velenje 3320, Slovenia
5. ERICo Velenje, Ecological Research and Industrial Cooperation, Velenje 3320, Slovenia