Chen, Z. [P:(DE-HGF)0] ; Zhao, X. [P:(DE-HGF)0] ; Bengel, C. [P:(DE-HGF)0] ; Liu, Feng [P:(DE-Juel1)187241] ; Li, K. [P:(DE-HGF)0] ; Schmidt, H. [P:(DE-HGF)0] ; Menzel, Stephan [P:(DE-Juel1)158062] ; Du, N. [P:(DE-HGF)0]