APPLIED PHYSICS LETTERS

JIA ZZ, ZHANG R, HAN Q, YAN QJ, ZHU R, YU DP, WU XS

APPLIED PHYSICS LETTERS

ZHANG R, WANG ZS, ZHANG ZD, DAI ZG, WANG LL, LI H, ZHOU L, SHANG YX, HE J, FU DJ, LIU JR

APPLIED PHYSICS LETTERS

ZHANG R, ZHANG ZD, WANG ZS, WANG SX, WANG W, FU DJ, LIU JR

APPLIED PHYSICS LETTERS

FU XW, LIAO ZM, ZHOU JX, ZHOU YB, WU HC, ZHANG R, JING GY, XU J, WU XS, GUO WL, YU DP

APPLIED PHYSICS LETTERS

ZHENG SJ, ZHANG H, FENG ZH, YU YY, ZHANG R, SUN CL, LIU J, DUAN XX, PANG W, ZHANG DH