APPLIED PHYSICS LETTERS

CHENG GH, WEI LM, CHENG L, LIANG HX, ZHANG XQ, LI H, YU GL, ZENG CG

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

LI H, ZHANG HB, SHAO JM, ZHANG YY, YAO DX, YANG GW

APPLIED PHYSICS LETTERS

YANG ZC, ZHAO Q, OU YX, WANG W, LI H, YU DP

APPLIED PHYSICS LETTERS

HE YZ, LI H, SI PC, LI YF, YU HQ, ZHANG XQ, DING F, LIEW KM, LIU XF