1. Institute of Spintronics and Quantum Information Faculty of Physics Adam Mickiewicz University 61-712 Poznań Poland
2. Institute of Magnetism National Academy of Sciences of Ukraine 03142 Kyiv Ukraine
3. Depto. Polímeros y Materiales Avanzados: Física Química y Tecnología Universidad del País Vasco UPV/EHU 20018 San Sebastián Spain
4. EHU Quantum Center University of the Basque Country UPV/EHU 48940 Leioa Spain
5. IKERBASQUE The Basque Foundation for Science 48009 Bilbao Spain