1. Instituto de Ciencia Molecular (ICMol)Universidad de Valencia Catedrático José Beltrán 2 46980 Paterna, Valencia Spain
2. Department of PhysicsBudapest University of Technology and Economics, POBox 91, 1521 Budapest, Hungary and MTA-BME Lendület Spintronics Research Group (PROSPIN) 1521 Budapest Hungary
3. Centro de Ciências e Tecnologias Nucleares (C2TN)Instituto Superior TécnicoUniversidade de Lisboa 2695-066 Bobadela LRS Portugal
4. Department of Chemistry and Pharmacy andJoint Institute of Advanced Materials and Processes (ZMP)University Erlangen-Nürnberg Henkestr. 42, 91054 Erlangen and Dr.-Mack Str. 81 90762 Fürth Germany