Scherff, M. [P:(DE-HGF)0] ; Windgassen, H. [P:(DE-HGF)0] ; Ma, Y. [P:(DE-HGF)0] ; Stiebig, H. [P:(DE-Juel1)VDB5910] ; Müller, T. [P:(DE-HGF)0] ; Fahrner, W. R. [P:(DE-HGF)0]