PHYSICAL REVIEW B

YUE SS, ZHOU H, GENG DY, SUN ZY, ARITA M, SHIMADA K, CHENG P, CHEN L, MENG S, WU KH, FENG BJ

ADVANCED FUNCTIONAL MATERIALS

GAO X, ZHANG J, JU PF, LIU JZ, JI L, LIU XH, MA TB, CHEN L, LI HX, ZHOU HD, CHEN JM