APPLIED PHYSICS LETTERS

WANG Y, CHEN XL, YE WG, WU ZF, HAN Y, HAN TY, HE YH, CAI Y, WANG N

PHYSICAL REVIEW B

WANG L, CHEN XL, ZHU W, WANG Y, ZHU C, WU ZF, HAN Y, ZHANG MW, LI W, HE YH, WANG N