1. Functional Nanomaterials, Institute for Materials Science, Faculty of Engineering, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
2. Leibniz Institute for Composite Materials (IVW), Erwin-Schrödinger-Straße 58, D-67663 Kaiserslautern, Germany
3. Institute of Metallic Biomaterials, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, D-21502 Geesthacht, Germany
4. Institute of Materials Physics, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, D-21502 Geesthacht, Germany