APPLIED PHYSICS LETTERS

YAN H, LIU CC, BAI KK, WANG XJ, LIU MX, YAN W, MENG L, ZHANG YF, LIU ZF, DOU RF, NIE JC, YAO YG, HE L

PHYSICAL REVIEW B

MENG L, HE WY, ZHENG H, LIU MX, YAN H, YAN W, CHU ZD, BAI KK, DOU RF, ZHANG YF, LIU ZF, NIE JC, HE L