Ling Yung-Chien | Department of Physics, National Taiwan Normal University, Taipei, Taiwan 117, R.O.C.

Department Of Physics And Materials Science Center National Tsing-hua University

Department of Physics, National Taiwan Normal University

Department Of Physics National Taiwan Normal University

Department Of Chemistry Materials Science Center National Tsing-hua University

Depart. Of Physics National Taiwan Normal University R.o.c.

Department of Physics, National Taiwan Normal University

Department of Physics, National Taiwan Normal University, Taipei, Taiwan 117, R.O.C.

Department Of Physics National Taiwan Normal University

Department of Physics, National Taiwan Normal University