1. University of Augsburg
2. Institute of Physics
3. Chair of Solid State and Materials Science
4. 86135 Augsburg, Germany
5. University of Bayreuth
6. Department of Inorganic Chemistry III
7. 95440 Bayreuth, Germany
8. Georg-August-Universität Göttingen
9. Institute of Inorganic Chemistry
10. 37077 Göttingen, Germany
11. Experimental Physics V
12. Center for Electronic Correlations and Magnetism