PHYSICAL REVIEW B

LI SY, LIU KQ, YIN LJ, WANG WX, YAN W, YANG XQ, YANG JK, LIU HW, JIANG H, HE L

PHYSICAL REVIEW B

WANG WX, JIANG H, ZHANG Y, LI SY, LIU HW, LI XQ, WU XS, HE L