1. 3.
Physikalisches Institut, Universität Stuttgart, 70569 Stuttgart, Germany
2. Semiconductor
Physics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, United Kingdom
3. 3D-OXIDES, 130 Rue Gustave Eiffel, Saint Genis Pouilly, 01630, France
4. RUBION, Ruhr-Universität Bochum, 44780 Bochum, Germany