Hamann, A. [P:(DE-HGF)0] ; Stockert, O. [P:(DE-HGF)0] ; Fritsch, V. [P:(DE-HGF)0] ; Grube, K. [P:(DE-HGF)0] ; Schneidewind, A. [P:(DE-Juel1)156579] ; v. Löhneysen, H. [P:(DE-HGF)0]