1. Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, Poznań, Poland
2. Institute of Electrical Engineering, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava, Slovakia
3. Slovakia and Centre For Advanced Materials Application CEMEA, Slovak Academy of Sciences, Dubravska cesta 9, 845 11 Bratislava, Slovakia